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  4. A polyatomic gas with n degrees of freedom has a mean energy per molecule given by

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Q. A polyatomic gas with n degrees of freedom has a mean energy per molecule given by

AIPMTAIPMT 1989

Solution:

According to law of equipartition of energy,
the energy per degree of freedom is $\frac {1}{2}kT. $ For a
polyatomic gas with n degrees of freedom, the
mean energy per molcule $= \frac {1}{2}nkT $