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Questions  

During an adiabatic process the pressure of a gas is found to be proportional to the cube of the absolute temperature. The ratio of the specific heats of the gas is

a
2
b
32
c
53
d
43

detailed solution

Correct option is B

P1-γTγ = constantor TγPγ-1 = constantor Pγ-1 = Tγconstantor P ∝ Tγγ-1But P ∝ TaHence, γγ-1 = 3 or γ = 32

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