gases

find the ratio of translational and rotational energies of a diatomic gas. please give solution

2 Answers

For a diatomic gas, there are 5 degrees of freedom -
3 for translational and 2 for rotational.

According to equipartition of energy the share of each degree of freedom is 1/2 kT per molecule.

Total translational energy per molecule = 3/2 kT
Total Rotational energy per molecule = 2/2 kT

Ratio = 3 : 2

Hope this helps
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