in this definition of temperature, is "energy" only kinetic?

When temperature is defined as the partial derivative of internal energy with respect to entropy, does "internal energy" include just
*kinetic* energy?
Or does it also include potential energy, e.g. in inter-atomic bonds?
Thanks!
Michael
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On Mar 1, 7:01pm, snipped-for-privacy@yahoo.co.uk wrote:

Example: Water: Ice, liqid, wapor, dissociated into atoms, ionized atoms. It seems that it also includes potential energy. kunzmilan
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