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Re: Thermal Energy - thermalization of rotational energy



I would venture that that energy of a system be considered to have been
thermalized when its distribution over all possible modes/levels is strictly
determined by the temperature of the system (eg: for quadratic functions of
x/p, through the [quantum mechanically modified] equipartition principle).
Then thermal energy is that energy which has been thermalized.

OK, but usually the term used is "relaxation time" -- Why invent a new
term which will further confuse both us and our students.?

Further, classical thermodynamics concerns only systems which have
"relaxed" and the corresponding energy is usually called "internal energy"
-- why invent a new term?

Jim Green
mailto:JMGreen@sisna.com
http://users.sisna.com/jmgreen