Thermodynamic Process

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Thermodynamic Process: Overview

This topic covers concepts, such as, Heat in Cyclic Process,Non-cyclic process,Heat in Isothermal Process etc.

Important Questions on Thermodynamic Process

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Heat absorbed by a system in going through a cyclic process shown in figure is :

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A closed container contains a homogeneous mixture of two moles of an ideal monatomic gas γ=53 and one mole of an ideal diatomic gas γ=75. Here, γ is the ratio of the specific heats at constant pressure and constant volume of an ideal gas. The gas mixture does a work of 66 Joule when heated at constant pressure. The change in its internal energy is _____ Joule.

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A thermodynamic system is taken through cyclic process. The total work done in the process is :

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A gas is compressed adiabatically, which one of the following statement is NOT true?

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An ideal gas is compressed such that its pressure P and volume V are related as PV 2= constant. During this process, the temperature of gas

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In which of the following process, the internal energy of gas remains constant?

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 The final volume (in L) of one mole of an ideal gas initially at 27°C and 8.21 atm pressure, if it absorbs 420 cal of heat during a reversible isothermal expansion, is

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The work done by gas is equal to heat supplied. An ideal gas has initial volume V and pressure P. To triple its volume the minimum work done, will be

 

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 Following graph shows a single stage expansion process, then work done by the system is ?

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  Select the correct option regarding adiabatic expansion of an ideal gas.

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A monoatomic gas does 100 J of work when it is expanded isobarically. How much of heat is given to the gas in the process

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A gas is expanded from an initial state to a final state along a path on a P-V diagram. The path consists of (i) an isothermal expansion of work 50 J, (ii) an adiabatic expansion and (iii) an isothermal expansion of work 20 J. If the internal energy of gas is changed by -30 J, then the work done by gas during adiabatic expansion is

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A process in which the amount of heat supplied to the system goes fully to change its internal energy and temperature is

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Calculate the amount of work done when one mole of an ideal gas contained in a bulb of 2 L capacity at 1atm is allowed to enter in evacuated bulb of 10 L capacity and in another case it is allowed to expand from 1 L to 5 L against a pressure of 1atm.

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In the given P-V diagram, a monoatomic gas γ=53 is first compressed adiabatically from state A state B. Then it expands isothermally from state B to state C. [Given : 130.6=0.5,ln20.7].

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Which of the following statement(s) is(are) correct?

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State 1     State 2     State 3

T=300 KP=15 bar1 mole   T=300 KP=10 bar 1 mole T=300 KP=5 bar1 mole 

Above shows a cyclic process. Calculate the total work done during one complete cycle.

(Assume a single step to reach the next state).

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Find the heat energy required to raise the temperature of n moles of a gas from T0 to 2T0 if its molar heat capacity varies as shown in the diagram. The equation of the curve is CTx= constant

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Which of the following statements is correct, in case of adiabatic expansion?

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The relation between internal energy U, pressure P and volume V of a gas in an adiabatic process is U=a+bPV where a and b are positive constants.

The value of ratio of molar specific heats γ is 

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A thermodynamic system containing one mole of an ideal gas was supplied with 3kJ of heat. All the heat was utilized in increasing the internal energy of the system. No work is done in the process through volume change.
Cv=3R2
Choose correct statements from the following: