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Questions  

During an adiabatic process, the pressure of a gas is found to be proportional to the cube of its  temperature. The ratio of  CpCV  for the gas is  

a
43
b
2
c
53
d
32

detailed solution

Correct option is D

According to question,  p∝T3pV=nRT⇒pV∝Tp∝(pV)3⇒p2V3= constant pV3/2= constant ∵ pVγ= constant   (For adiabatic process)∴ γ=CpCV=32

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