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The specific heats, C(P) and C(V) of a g...

The specific heats, `C_(P)` and `C_(V)` of a gas of diatomic molecules, A are given (in units of `Jmol^(-1) K^(-1)`) by 29 and 22 , respectively. Another gas of diatomic molecules , B has the corresponding values 30 and 21. if they are treated as ideal gases, then :

A

A has one vibrational degree of freedom and B has two vibrational degrees of freedom

B

A has one vibrational degree of freedom and B has zero vibrational degree of freedom

C

A and B both have one vibrational degree of freedom

D

A and B both have two vibrational degrees of freedom

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