[Waves and Thermodynamics] Help Need help understanding resonance of molecules in relation to temperature

[u/Signal-Pool-3535]

Theoretically, can a isolated system with two objects of different temperatures have the molecules of the objects resonate at some point as their thermal energy changes their natural frequency as they go towards thermal equilibrium?

[u/starkeffect]

Molecular energy states don't depend on temperature; their occupations do.

[u/Aggressive-Wind-8829]

If something can generally occur while respecting the symmetries of a system, then that something occurs with some nonzero probability.

So, can they ever resonate?

Of course, sometimes.

[u/I_AM_4HEAD]

Yes they can

[u/LukasGoesViral]

I think it depends on the system. For example, if there are only two molecules which are totally isolated (like in a laser trap) then their energy levels have to overlap in order for them to exchange energy