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

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

PhysicsKinetic Theory of GasesJEE Main

Options:

A $\frac{n k T}{N}$
B $\frac{n k T}{2 N}$
C $\frac{n k T}{2}$
D $\frac{3 k T}{2}$
( $N$ is Avogadro's number)

Solution:

2094 Upvotes Verified Answer

The correct answer is: $\frac{n k T}{2}$

Mean kinetic energy per molecule $E=\frac{f}{2} k T=\frac{n}{2} k T$

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