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Questions  

When an ideal diatomic gas is heated at constant pressure, the fraction of the heat energy supplied which increases the internal energy of the gas is
 

a
25
b
35
c
37
d
57

detailed solution

Correct option is D

Fraction of supplied energy which increases the internal energy is given byf=ΔUΔQP=ΔQVΔQP=μCVΔTμCVΔT=1γ=175=57For diatomic gas γ=75

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