If the diatomic molecule is not rigid but has in addition a vibrationa – McqOptions

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1.	If the diatomic molecule is not rigid but has in addition a vibrational mode, then the total internal energy of a mole of such a gas is?
A.	7RT/2
B.	5RT/2
C.	3RT/2
D.	RT/2
Answer» B. 5RT/2

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