Asked by Avaneesh Narayan Singh

if a molecules in a solid has a temp of T = hf/2k then what would be the average energy of vibration
Answered by bobpursley
KE=3/2 kT=3/2 k (hf/2k)=3/4 hf
Answered by Avaneesh Narayan Singh
sorry....but there is vibrational energy which is asked so this is not correct.
plese give me the answer in form of kT.
Answered by life is beautiful
The standard formula for average energy of a solid molecule is (3/2)kT. According to equipartition theory each degree of freedom has energy of (1/2)kT. A solid has 3 degrees of freedom. Hence its energy is (3/2)kT. The answer posted is right. Must be some problem with the options. Pl. Check.
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