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JEE Advanced 2014 Paper 1

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Question : 22

Total: 60

An ideal gas in a thermally insulated vessel at internal pressure =P1, volume=V1 and absolute temperature =T1 expands irreversibly against zero external pressure, as shown in the diagram. The final internal pressure, volume and absolute temperature of the gas are P2,V2 and T2, respectively. For this expansion

q=0
T2=T1
P2V2=P1V1
P2V2γ=P1V1γ

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