NEET Physics Thermodynamics Questions Solved


A cyclic process for 1 mole of an ideal gas is shown in figure in the V-T, diagram. The work done in AB, BC and CA respectively

(1) 0,RT2lnV1V2,R(T1T2)

(2) R(T1T2),0,RT1lnV1V2

(3) 0,RT2lnV2V1,R(T1T2)

(4) 0,RT2lnV2V1,R(T2T1)

(3) Process AB is isochoric, ∴ WAB=PΔV=0

Process BC is isothermal

WBC=RT2.lnV2V1

Process CA is isobaric

WCA=PΔV=RΔT=R(T1T2)=R(T2T1)

(Negative sign is taken because of compression)

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