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Diatomic molecules like hydrogen have en...

Diatomic molecules like hydrogen have energies due to both translational as well as rotational motion. From the equation in kinetic theory `pV=(2)/(3) E. E`

A

the total energy per unit volume

B

only the translational part of energy because rotational energy is very small compared to the translational energy

C

only the translational part of the energy because during collisions with the wall pressure rotates to change in linear momentum

D

the translational part of the energy because rotational energies of molecules can be of either sign and its average over all the molecules is zero.

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The correct Answer is:
C
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