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As pointed out in the comments the rigid rotating molecule only gains kinetic energy when it rotates not potential energy.
The degeneracy describes the fact that some levels have exactly the same energy and this depends the value of the angular momentum rotational quantum number $J$. The number of degenerate levels is given by the multiplicity $2J+1$. The $...
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I have two questions...
Why does a molecule "gain potential energy" when it rotates? Does it
want to stop rotating for some reason?
What do degenerate energy levels correspond to physically in terms of
the molecule's rotation?
Do you remember the Newton's law of motion? A body in motion will always remain in motion until and unless there is a ...
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The Joint Entrance Examination board should update their outdated set of questions relying on rote memorization. Why do they assume the student has to memorize the charge of the ferric hydroxide particles and in what medium? Charge on the colloids is dependent on the medium and pH! They should also mention that the molar concentration of the anions is the ...
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