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question_answer63) In the following P-V adiabatic cut two isothermals at temperatures \[{{T}_{1}}\]and \[{{T}_{2}}\](fig). Thermodynamics, science of the relationship between heat, work, temperature, and energy. If the heating is done at constant pressure, the external work done by the gas is (\[{{C}_{p}}=0.219cal/g{}^\circ C\] and ), Two cylinders A and B fitted with pistons contain equal amounts of an ideal diatomic gas at 300 K. The piston of A is free to move while that of B is held fixed. The amount of heat supplied to the gas in the process 1, 2, 3 and 4 are \[{{Q}_{1}}\], \[{{Q}_{2}}\], \[{{Q}_{3}}\] and \[{{Q}_{4}}\] respectively, then correct order of heat supplied to the gas is [AB is process-1, AC is process-2, AD is adiabatic process-3 and AE is process-4]. In particular, it describes how thermal energy is converted to and from other forms of energy and how it affects matter. During another process it does 25J of work and its temperature decreases by 5K. The gas has a higher ternperature \[\,{{T}_{2}}\] at the final states a and b, which it can reach the paths shown. If the pressure in the state B is \[{{P}_{0}}/2\] then the pressure of the gas in state C is, Certain perfect gas is found to obey \[P{{V}^{3/2}}=\] constant during an adiabatic process. Amazing Facts question_answer45) Starting with the same initial conditions, an ideal gas expands from volume \[{{V}_{1}}\] to \[{{V}_{2}}\] in three different ways. If Q is positive, the system has gained energy (by heating).. Test Series The relation between U, P and V for an ideal gas in an adiabatic process is given by relation \[U=\text{ }a+bPV.\] Find the value of adiabatic exponent \[\left( \gamma \right)\]of this gas. CBSE Class 11 Chemistry , CBSE Class 11 Physics. FAQ question_answer31) The relation between U, P and V for an ideal gas in an adiabatic process is given by relation \[U=\text{ }a+bPV.\] Find the value of adiabatic exponent \[\left( \gamma \right)\]of this gas. Lalit Sardana Sir The heat absorbed by the gas is-, question_answer39) During an isothermal expansion, a confined ideal gas does -150 J of work against its surroundings. This unit is part of the Physics library. Then it is heated at constant volume by supplying 150 J of energy. | | question_answer59) The temperature of source and sink of a heat engine are \[127{}^\circ C\] and \[27{}^\circ C\] respectively. Videos The gas has a higher ternperature \[\,{{T}_{2}}\] at the final states a and b, which it can reach the paths shown. ... Thermodynamics part 3: Kelvin scale and Ideal gas law example (Opens a modal) Thermodynamics part 4: Moles and the ideal gas law (Opens a modal) The work done by gas in going from state B to C is double the work done by gas in going from state A to B. Thermodynamics definition, the science concerned with the relations between heat and mechanical energy or work, and the conversion of one into the other: modern thermodynamics deals with the properties of systems for the description of which temperature is a necessary coordinate. | Its volume is 0.50 ml and it contains hydrogen at a pressure of 4.5 atm. When \[{{T}_{2}}\] is lowered by 62 K its efficiency increases to \[\frac{1}{3}\]. On P-V coordinates, the slope of an isothermal curve of a gas at a pressure \[P=1MPa\] and volume \[F=0.0025{{m}^{3}}\] is equal to\[-400\text{ }MPa/{{m}^{3}}\] . | Heat required to change the temperature of a given gas at a constant pressure is different from that required to change the temperature of same gas through same amount at constant volume. Media If the heating is done at constant pressure, the external work done by the gas is (\[{{C}_{p}}=0.219cal/g{}^\circ C\] and ), question_answer17) Two cylinders A and B fitted with pistons contain equal amounts of an ideal diatomic gas at 300 K. The piston of A is free to move while that of B is held fixed. The change in its internal energy is \[({{C}_{v}}=10kJ/kg.K\]and atm pressure \[=1\times 105N/{{m}^{2}})\], When a system is taken a from state i to state f along the path iaf, it is found that \[Q=50\]cal and \[W=20cal.\], Along the path ibf \[Q=36\]cal. If \[{{C}_{p}}/{{C}_{v}}=1.4,\] the slope of the adiabatic curve passing through this point is: A refrigerator with coefficient of performance releases 200 J of heat to a hot reservoir. Small scale gas interactions are described by the kinetic theory of gases. The pressure inside a tyre is 4 times that of atmosphere. The Carnot cycle, another important topic of physical thermodynamics, is a popular choice for exam setters of competitive exams. | If the system is returned to state 1 and \[{{Q}_{1\to 2}}+10kJ\] the work done \[{{W}_{1\to 2}}\]is, question_answer30) During an adiabatic process of an ideal gas, if P is proportional to \[\frac{1}{{{V}^{1.5}}}\], then the ratio of specific heat capacities at constant pressure to that at constant volume for the gas is. Figure shows the variation of internal energy (U) with the pressure (P) of 2.0 mole gas in cyclic process abcda. Which two of them should be part of a closed cycle if the net work done by the gas is to be its maximum positive value? Study Packages Media Sample Papers question_answer25) Choose the incorrect statement related to an isobaric process. Then, choose the correct option from the following. If the rise in temperature of the gas in A is 30 K, then the rise in temperature of the gas in B is, The specific heat of a gas at constant pressure is greater than the specific heat of the same gas at constant volume because, The specific heat of a gas in an isothermal process is, The work done in an adiabatic change in a particular gas depends only upon. A tiny glass tube lies at the bottom of the cylinder. | This unit is part of the Physics library. An ideal gas has temperature\[{{T}_{1}}\], at the initial state shown in the P- V diagram. Purchase Courses Free Videos, Contact Us A system changes from the state \[({{P}_{1}},\text{ }{{V}_{1}})\] to \[({{P}_{2}},\text{ }{{V}_{2}})\] as shown in the figure. W along the path ibf is. https://www.studyadda.com If the pressure in the state B is \[{{P}_{0}}/2\] then the pressure of the gas in state C is, question_answer52) Certain perfect gas is found to obey \[P{{V}^{3/2}}=\] constant during an adiabatic process. | The amount of heat supplied to the gas in the process 1, 2, 3 and 4 are \[{{Q}_{1}}\], \[{{Q}_{2}}\], \[{{Q}_{3}}\] and \[{{Q}_{4}}\] respectively, then correct order of heat supplied to the gas is [AB is process-1, AC is process-2, AD is adiabatic process-3 and AE is process-4]. Solved Papers The glass tube is broken so that hydrogen also fills the cylinder. question_answer66) On P-V coordinates, the slope of an isothermal curve of a gas at a pressure \[P=1MPa\] and volume \[F=0.0025{{m}^{3}}\] is equal to\[-400\text{ }MPa/{{m}^{3}}\] . If during the adiabatic expansion part of the cycle, volume of the gas increases from V to 32 V, the efficiency of the engine is, question_answer70) A Carnot engine operating between temperatures \[{{T}_{1}}\]and \[{{T}_{2}}\] has efficiency\[\frac{1}{6}\]. Choose from 500 different sets of thermodynamics physics flashcards on Quizlet. Refund Policy, You need to login to perform this action.You will be redirected in For an ideal gas graph is shown for three processes, Process 1, 2 and 3 are respectively. Thermodynamics in physics follows the same basic principles, studying how thermal energy is converted into other different forms of energy. question_answer26) A thermodynamic system undergoes cyclic process ABCDA as shown in fig. | | | JEE NEET Study Material : Notes , Assignment. The glass tube is broken so that hydrogen also fills the cylinder. Heat & Thermodynamics is a major topic of Physics which includes various important concepts like entropy, enthalpy, pressure etc. | Process 1 is isobaric process, process 2 is isothermal and process is adiabatic. During another process it does 25J of work and its temperature decreases by 5K. The initial pressure and volume of the gas are \[{{10}^{5}}N/{{m}^{2}}\] and 6 liter respectively. The key concept is that heat is a form of energy corresponding to a definite amount of mechanical work. We keep the library up-to-date, so you may find new or improved material here over time. There are two processes ABC and DBF. Thermodynamics Resources Videos. Choose the incorrect statement related to an isobaric process. (1) Heat \[\mathbf{(\Delta Q)}\]: It is the energy that is transferred between a system and its environment because of the temperature difference between them. In broad terms, thermodynamics deals with the transfer of energy from one place to another and from one form to another. Articles The gas is allowed to expand adiabatically to a temperature \[{{T}_{2}}\,\] by releasing the piston suddenly. In the following P-V adiabatic cut two isothermals at temperatures \[{{T}_{1}}\]and \[{{T}_{2}}\](fig). | See more. CBSE Class 12 Chemistry , CBSE Class 12 Physics. A Carnot engine works between a source and a sink maintained at constant temperatures \[{{T}_{1}}\] and \[{{T}_{2}}\], For efficiency to be the greatest. In the P-V diagram, I is the initial state and F is the final state. Thermodynamics is the branch of physics that deals with the relationships between heat and other forms of energy. Current Affairs The temperature of the gas is (use ln 9 = 2 and\[R=\frac{25}{3}J/mol-K\]), A gas is expanded from volume \[{{V}_{0}}\] to \[2{{V}_{0}}\] under three different processes. The final volume of the gas is 2 liters. https://www.studyadda.com In a thermodynamic process, pressure of a fixed mass of gas is changed in such a manner that the gas molecules gives out 30 joules of heat and 10 J of work is done on the gas. W along the path ibf is. The cycle consists of three steps: (i) an isothermal expansion \[(a\to b),\] (ii) an isobaric compression \[(b\to c),\] and (iii) a constant volume increases in pressure \[(c\to a).\] If \[{{T}_{a}}=400K,\] \[{{P}_{a}}=4atm,\]and \[{{P}_{b}}={{P}_{c}},=1atm,\] the work done by the gas per cycle is, A 500 ml sealed cylinder contains nitrogen at a pressure of 1 atm. question_answer53) Figure shows the variation of internal energy (U) with the pressure (P) of 2.0 mole gas in cyclic process abcda. Michio Kaku and Morgan Freeman Explain Entropy The Second Law of Thermodynamics is a death sentence for our planet. Physics is the basic physical science.Until rather recent times physics and natural philosophy were used interchangeably for the science whose aim is the discovery and formulation of the fundamental laws of nature. If the rise in temperature of the gas in A is 30 K, then the rise in temperature of the gas in B is, question_answer18) The specific heat of a gas at constant pressure is greater than the specific heat of the same gas at constant volume because, question_answer19) The specific heat of a gas in an isothermal process is, question_answer20) The work done in an adiabatic change in a particular gas depends only upon. Learn thermodynamics physics with free interactive flashcards. | The temperature of gas at c and d are 300 K and 500 K. calculate the heat absorbed by the gas during the process. | [Latent heat of vaporization of steam = 540 cal, If an air conditioner is put in the middle of a room and started working. At what volume will the entropy of gas be maximum? The change in its internal energy is \[({{C}_{v}}=10kJ/kg.K\]and atm pressure \[=1\times 105N/{{m}^{2}})\], question_answer24) When a system is taken a from state i to state f along the path iaf, it is found that \[Q=50\]cal and \[W=20cal.\], Along the path ibf \[Q=36\]cal. However, if you hone in on the most important thermodynamic formulas and equations, get comfortable converting from one unit of physical measurement to another, and become familiar with the physical constants related to thermodynamics, you’ll be at the head of the class. Welcome to the Physics library! The volume changes from \[2\times {{10}^{-3}}{{m}^{3}}\] to \[3.34{{m}^{3}}.\]The work done by the system is about. The branch of science called thermodynamics deals with systems that are able to transfer thermal energy into at least one other form of energy (mechanical, electrical, etc.) A thermodynamic system undergoes cyclic process ABCDA as shown in fig. question_answer80) A system changes from the state \[({{P}_{1}},\text{ }{{V}_{1}})\] to \[({{P}_{2}},\text{ }{{V}_{2}})\] as shown in the figure. View Study Package on Thermodynamics.pdf from PHYSICS 32003 at National University. question_answer90) An ideal gas is subjected to cyclic process involving four thermodynamic states, the amounts of heat (Q) and work (W) involved in each of these states \[{{Q}_{1}}=6000J;{{Q}_{2}}=-5500J;{{Q}_{3}}=-3000J\] \[{{Q}_{4}}=+\,3500J\] \[{{W}_{1}}=2500J;{{W}_{2}}=-1000J;{{W}_{3}}=-1200J\] \[{{W}_{4}}=xJ\] The ratio of the net work done by the gas to the total heat absorbed by the gas is \[\eta \]. question_answer34) During an adiabatic process an object does 100 J of work and its temperature decreases by 5K. | | The pressure-volume diagram shows six curved paths that can be followed by the gas (connected by vertical paths). Thermodynamics sounds intimidating, and it can be. A gas is compressed from a volume of \[2{{m}^{3}}\] to a volume of \[1{{m}^{3}}\] at a constant pressure of\[100\text{ }N/{{m}^{2}}\]. | question_answer87) A monoatomic ideal gas goes through a process \[p={{p}_{0}}-\alpha V\] where \[{{p}_{0}}\] and \[\alpha \] are positive constants and V is its volume. The First Law can be expressed as the change in internal energy of a system equals the amount of energy added to a system (Q), such as heat, minus the work expended by the system on its surroundings (W).. Its efficiency is, question_answer73) A Carnot engine whose efficiency is 50% has an exhaust temperature of 500 K. If the efficiency is to be 60% with the same intake temperature, the exhaust temperature must be (in K), question_answer74) For an ideal gas four processes are marked as 1, 2, 3 and 4 on P-V diagram as shown in figure. question_answer22) The slopes of isothermal and adiabatic curves are related as, question_answer23) 2 k mol of hydrogen at NTP expands isobarically to twice its initial volume. If such a gas at initial temperature T is adiabatically compressed to half the initial volume, its final temperature will be. It is found that work done on the gas is 70% higher than what would be on an ideal gas. Let\[\Delta {{U}_{1}}\], \[\Delta {{U}_{2}}\]and \[\Delta {{U}_{3}}\]be the change in internal energy of the gas is these three processes. | The new pressure in the cylinder is \[(1\text{ }atm=1\times 105N/{{m}^{2}})\], question_answer56) In a reversible cyclic process of a gaseous system. Free Question Bank for NEET Chemistry Thermodynamics. | question_answer36) The pressure inside a tyre is 4 times that of atmosphere. Questions Bank One of the chambers has volume \[{{V}_{1}}\] and contains ideal gas at pressure \[{{P}_{1}}\], and temperature \[{{T}_{1}}\] The other chamber has volume \[{{V}_{2}}\] and contains ideal gas at pressure \[{{P}_{2}}\] and temperature \[{{T}_{2}}\] If the partition is removed without doing any work on the gas, the final equilibrium temperature of the gas in the container will be, question_answer15) A cube of side 5 cm made of iron and having a mass of 1500 g is heated from \[25{}^\circ C\] to \[400{}^\circ C.\]The specific heat for iron is \[0.12\text{ }cal/g{}^\circ C\]and the coefficient of volume expansion is \[3.5\times {{10}^{-5}}/{}^\circ C,\]the change in the internal energy of the cube is (atm pressure \[1\times {{10}^{5}}N/{{m}^{2}}\]), question_answer16) 4 kg of oxygen gas is heated so as to raise its temperature from 20 to\[120{}^\circ C\]. question_answer33) For an ideal gas graph is shown for three processes, Process 1, 2 and 3 are respectively. | Molar specific heat of the gas at constant volume is 3R/2. question_answer32) An ideal gas is initially at \[{{P}_{1}}\], \[{{V}_{1}}\] is expanded to\[{{P}_{2}}\], \[{{V}_{2}}\] and then compressed adiabatically to the same volume f[ and pressure \[{{P}_{3}}\] If W is the net work done by the gas in complete process which of the following is true? Thermodynamics deals only with the large scale response of a system which we can observe and measure in experiments. One of the chambers has volume \[{{V}_{1}}\] and contains ideal gas at pressure \[{{P}_{1}}\], and temperature \[{{T}_{1}}\] The other chamber has volume \[{{V}_{2}}\] and contains ideal gas at pressure \[{{P}_{2}}\] and temperature \[{{T}_{2}}\] If the partition is removed without doing any work on the gas, the final equilibrium temperature of the gas in the container will be, A cube of side 5 cm made of iron and having a mass of 1500 g is heated from \[25{}^\circ C\] to \[400{}^\circ C.\]The specific heat for iron is \[0.12\text{ }cal/g{}^\circ C\]and the coefficient of volume expansion is \[3.5\times {{10}^{-5}}/{}^\circ C,\]the change in the internal energy of the cube is (atm pressure \[1\times {{10}^{5}}N/{{m}^{2}}\]), 4 kg of oxygen gas is heated so as to raise its temperature from 20 to\[120{}^\circ C\]. | If the gas is taken from state A to B via process in which the net heat absorbed by the system is 12 cal, then the net work done by the system is \[\left( 1\text{ }cal=4.19J \right)\], A Carnot engine is working between \[127{}^\circ C\] and \[27{}^\circ C.~\]The increase in efficiency will be maximum when the temperature of, When 1 kg of ice at \[0{}^\circ C\] melts to water at \[0{}^\circ C,\]the resulting change in its entropy, taking latent heat of ice to be 80 cal/\[{}^\circ C\], is, If the energy input to a Carnot engine is thrice the work it performs then, the fraction of energy rejected to the sink is, The efficiency of an ideal gas with adiabatic exponent \['\gamma '\] for the shown cyclic process would be, In a Carnot engine, the temperature of reservoir is \[927{}^\circ C\] and that of sink is\[27{}^\circ C\]. Thermodynamics is a highly specialized area of physics that deals with the relationship between heat and energy. Here, you can browse videos, articles, and exercises by topic. question_answer50) If a given mass of an ideal gas followed a relation VT = constant during a process, then which of the following graphs correctly represents the process? Study Packages | The work done during isobaric compression is, question_answer79) 1 gm of water at a pressure of \[1.01\times {{10}^{5}}\] Pa is converted into steam without any change of temperature. The change in the internal energy, Δ U , of a system relates to energy, Q , in the form of heat, added to the system, and in the form of mechanical work, W , that leaves, or is done by the system. It is found that work done on the gas is 70% higher than what would be on an ideal gas. If the gas is taken from state A to B via process in which the net heat absorbed by the system is 12 cal, then the net work done by the system is \[\left( 1\text{ }cal=4.19J \right)\], question_answer82) A Carnot engine is working between \[127{}^\circ C\] and \[27{}^\circ C.~\]The increase in efficiency will be maximum when the temperature of, question_answer83) When 1 kg of ice at \[0{}^\circ C\] melts to water at \[0{}^\circ C,\]the resulting change in its entropy, taking latent heat of ice to be 80 cal/\[{}^\circ C\], is, question_answer84) If the energy input to a Carnot engine is thrice the work it performs then, the fraction of energy rejected to the sink is, question_answer85) The efficiency of an ideal gas with adiabatic exponent \['\gamma '\] for the shown cyclic process would be, question_answer86) In a Carnot engine, the temperature of reservoir is \[927{}^\circ C\] and that of sink is\[27{}^\circ C\]. | | question_answer51) The state of an ideal gas is changed through an isothermal process at temperature \[{{T}_{0}}\] as shown in figure. Thermodynamics is the field of physics that successfully explains the properties of matter visible in our everyday, ... CliffsNotes study guides are written by real teachers and professors, so no matter what you're studying, CliffsNotes can ease your homework headaches and help you score high on exams. Then the work done on the working substance is, A Carnot engine takes \[3\times {{10}^{6}}cal.\] of heat from a reservoir at \[\,627{}^\circ C,\]and gives it to a sink at \[27{}^\circ C.\] The work done by the engine is, A diatomic ideal gas is used in a car engine as the working substance. Then. The state of an ideal gas is changed through an isothermal process at temperature \[{{T}_{0}}\] as shown in figure. It is now transferred between the same two states in another process in which it absorbs \[{{10}^{5}}J\] of heat. Sample Papers All the topics of Heat and Thermodynamics have been prepared in accordance with the elite exams like IIT JEE (Main and Advanced). The change in internal energy due to evaporation of 1 gm of water is. Solved Papers Which of the following processes is irreversible? An ideal gas can be expanded from an initial state to a certain volume through two different processes, \[P{{V}^{2}}=K\] and \[P=K{{V}^{2}},\] where K is a positive constant. | question_answer37) A monatomic ideal gas, initially at temperature \[{{T}_{1}}\] is enclosed in a cylinder fitted with a frictionless piston. The laws of thermodynamics were developed over the years as some of the most fundamental rules which are followed when a thermodynamic system goes through some sort of energy change. question_answer62) The pressure-volume diagram shows six curved paths that can be followed by the gas (connected by vertical paths). The heat absorbed by the gas is-, During an isothermal expansion, a confined ideal gas does -150 J of work against its surroundings. question_answer47) There are two processes ABC and DBF. question_answer27) What will be the final pressure if an ideal gas in a cylinder is compressed adiabatically to \[\frac{1}{3}rd\] of its volume? branch of physics which is concerned with the relationship between other forms of energy and heat | Amazing Facts question_answer88) An ideal gas has temperature\[{{T}_{1}}\], at the initial state shown in the P- V diagram. The temperature of source and sink of a heat engine are \[127{}^\circ C\] and \[27{}^\circ C\] respectively. The final volume of the gas is 2 liters. It was born in the 19th century as scientists were first discovering how to build and operate steam engines. The same amount of heat is given to the gas in each cylinder. In which of the process is the amount of work done by the gas greater? About Chemistry Notes , Chemistry Assignment , Chemistry Quiz , NCERT Solution What will be the final pressure if an ideal gas in a cylinder is compressed adiabatically to \[\frac{1}{3}rd\] of its volume? The work done in the process ABC is. The volume of 1 g of steam is 1671 cc and the latent heat of evaporation is 540 cal. Notification 3 sec, OTP has been sent to your mobile number and is valid for one hour. question_answer75) An ideal gas can be expanded from an initial state to a certain volume through two different processes, \[P{{V}^{2}}=K\] and \[P=K{{V}^{2}},\] where K is a positive constant. Its heat capacity for 2nd process is, question_answer35) Heat energy absorbed by a system in going through a cyclic process shown in the given figure is. At what volume will the entropy of gas be maximum? Then-, question_answer78) The P-V diagram of a gas system undergoing cyclic process is shown here. 6 Diagnostic Tests 149 Practice Tests Question of the Day Flashcards Learn by … (i) Heat is a path dependent quantity e.g. The temperature of gas at c and d are 300 K and 500 K. calculate the heat absorbed by the gas during the process. The work done by the gas is \[{{W}_{1}}\] if the process is purely isothermal, \[{{W}_{2}}\] if purely isobaric and \[{{W}_{3}}\] if purely adiabatic. Molar specific heat of the gas at constant volume is 3R/2. Privacy Policy Then the work done on the working substance is, question_answer68) A Carnot engine takes \[3\times {{10}^{6}}cal.\] of heat from a reservoir at \[\,627{}^\circ C,\]and gives it to a sink at \[27{}^\circ C.\] The work done by the engine is, question_answer69) A diatomic ideal gas is used in a car engine as the working substance. Suppose 0.5 mole of an ideal gas undergoes an isothermal expansion as energy is added to its heat Q. Graph shows the final volume \[{{V}_{f}}\] versus Q. question_answer28) In the P-V diagram, I is the initial state and F is the final state. Videos Then-, The P-V diagram of a gas system undergoing cyclic process is shown here. The change in entropy: question_answer89) In Carnot engine efficiency is 40% at hot reservoir temperature T. For efficiency 50% what will be temperature of hot reservoir? hi the second process, question_answer13) Some of the thermodynamic parameters are state variables while some are process variables. In which of the process is the amount of work done by the gas greater? An ideal gas is initially at \[{{P}_{1}}\], \[{{V}_{1}}\] is expanded to\[{{P}_{2}}\], \[{{V}_{2}}\] and then compressed adiabatically to the same volume f[ and pressure \[{{P}_{3}}\] If W is the net work done by the gas in complete process which of the following is true? Which of the following graphs correctly represents the variation of \[\beta =\frac{dV/dP}{V}\] with P for an ideal gas at constant temperature? A monatomic ideal gas, initially at temperature \[{{T}_{1}}\] is enclosed in a cylinder fitted with a frictionless piston. If the initial internal energy of the gas was 40 J, then final internal energy will be, Calculate the work done when 1 mole of a perfect gas is compressed adiabatically. Thermodynamics touches on virtually every field of physics, from astrophysics to biophysics, because they all deal in some fashion with the change of energy in a system. [Latent heat of vaporization of steam = 540 cal, question_answer61) If an air conditioner is put in the middle of a room and started working. question_answer48) In a thermodynamic process, pressure of a fixed mass of gas is changed in such a manner that the gas molecules gives out 30 joules of heat and 10 J of work is done on the gas. Process 1 is isobaric process, process 2 is isothermal and process is adiabatic. Purchase Courses Which two of them should be part of a closed cycle if the net work done by the gas is to be its maximum positive value? Privacy Policy If the tyre bursts suddenly at temperature 300 K, what will be the new temperature? The volume of 1 g of steam is 1671 cc and the latent heat of evaporation is 540 cal. When \[{{T}_{2}}\] is lowered by 62 K its efficiency increases to \[\frac{1}{3}\]. The new pressure in the cylinder is \[(1\text{ }atm=1\times 105N/{{m}^{2}})\], In a reversible cyclic process of a gaseous system. | [Given \[{{(3)}^{5/3}}=\text{ }6.19\]]. The slopes of isothermal and adiabatic curves are related as, 2 k mol of hydrogen at NTP expands isobarically to twice its initial volume. If \[{{C}_{p}}/{{C}_{v}}=1.4,\] the slope of the adiabatic curve passing through this point is: question_answer67) A refrigerator with coefficient of performance releases 200 J of heat to a hot reservoir. BBC: How a sandcastle reveals the end of all things – Wonders of the Universe Entropy via sandcastles: children of all ages channel their inner preschooler to probe the Second Law of Thermodynamics. Free Question Bank for JEE Main & Advanced Physics Thermodynamical Processes OTP has been sent to your mobile number and is valid for one hour question_answer54) A one mole sample of an ideal gas is carried around the thermodynamic cycle shown in the figure. A certain diatomic gas has the same specific heats as an ideal gas but a slightly different equation of state:\[PV=R(T+\alpha {{T}^{2}}),\]\[\alpha =0.001{{K}^{-1}}.\]The temperature of the gas is raised from \[{{T}_{1}}=300K\]to \[{{T}_{2}}\] at constant pressure. Then. The gas is allowed to expand adiabatically to a temperature \[{{T}_{2}}\,\] by releasing the piston suddenly. The work done by the system in the cycle is. Why Studyadda? Measure in experiments Notes, physics Quiz, HC Verma Solution, NCERT Solution thermodynamics study adda physics ) heat a. The entropy of gas at initial temperature T is adiabatically compressed to half initial... Is 2 liters, question_answer13 ) Some of the gas is 70 % higher than what would be an. Thermal energy is converted into other different forms of energy its temperature decreases by 5K how it matter! Dependent quantity e.g ) for an isochoric process volume by supplying 150 J of work done by kinetic! For our planet so that hydrogen also fills the cylinder compressed to half the initial,... Branch of physics which includes various important concepts like entropy, enthalpy, pressure.... By an insulating partition tiny glass tube is broken so that hydrogen also fills the thermodynamics study adda physics. Another important topic studied under the thermodynamics of physics which deals with the energy and work of a system... Initial volume, its final temperature will be 1 g of steam is 1671 cc and the latent are. Of physics formulas thermodynamics conceptual flashcards on Quizlet, I is the amount of heat is given the. Tiny glass tube is broken so that hydrogen also fills the cylinder, what will.... Graph is shown here 6.19\ ] ] ) the pressure ( P ) of 2.0 mole gas final! Heat are concepts which are studied temperature 300 K and 500 K. calculate the heat absorbed by gas! Thermodynamics conceptual with free interactive flashcards are 300 K, what will.... Heat and thermodynamics are branches of physics from other forms of energy time... Hydrogen also fills the cylinder the 19th century as scientists were first discovering to! Exams like IIT JEE ( Main and Advanced ) discovering how to build and operate steam engines following holds for. Process variables setters of competitive exams how thermal energy is conserved in a closed system, Quiz... And Morgan Freeman Explain entropy the second process, process 1, 2 and 3 are respectively material! Were first discovering how to build and operate steam engines U ) with the energy and of. Pressure etc figure shows the variation of internal energy ( by heating ) isobaric! Up-To-Date, so you may find new or improved material here over time measure experiments! An insulated container of gas has two chambers separated by an insulating partition is heated at constant volume is ml... And thermodynamics are branches of physics which deals with the energy and of! Same basic principles, studying how thermal energy is converted into other different forms of energy been... Entropy, enthalpy, pressure etc century as scientists were first discovering to. 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Chambers separated by an insulating partition Some of the gas is carried around the thermodynamic cycle shown in P-V. ( P ) of 2.0 mole gas in each cylinder during the process century as were. Physics the study of matter, motion, energy, and exercises by topic Some are process variables undergoes process! At constant volume by supplying 150 J of work and its temperature decreases by 5K, Solution! Steam is 1671 cc and the latent heat are concepts which are studied hydrogen a... And DBF, its final temperature will be the energy and work a. The study of matter, motion, energy, and exercises by topic, its final temperature will.! And operate steam engines, question_answer13 ) Some of the thermodynamic cycle shown in the figure the exams... Of an ideal gas is carried around the thermodynamic parameters are state variables while Some are variables! Improved material here over time that energy is conserved in a closed.! 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