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Question

If the distance between the atoms of a diatomic gas remains constant. Its specific heat capacity at constant volume per gram-mole is


Correct Answer
A
52R
Your Answer
B
23R
Your Answer
C
R
Your Answer
D
R3

Solution

The correct option is A 52R
As distance between the atoms of a diatomic gas remains constant, vibrational degree of freedom will not be counted.
It possesses only translational and rotational degree of freedom.
f=3(translational)+2(rotational)=5
Since, specific heat at constant volume per gram-mole is molar specific heat at constant volume.
CV=(f2)R
CV=52R

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