NEET Physics Thermodynamics Questions Solved

NEET - 2013

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

(a) 4/3

(b) 2

(c) 5/3

(d) 3/2

(d) According to question,

p∝T3

pV=nRT and p∝T3

p∝(pv)3

=> p2V3=constant

pV3/2=constant

∴ pVγ=constant

∴ γ=3/2

Difficulty Level:

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