Dictionary  Helm'holtz func"tionthe thermodynamic function of a system that is equal to its internal energy minus the product of its absolute temperature and entropy: A decrease in the function is equal to the maximum amount of work available during a reversible isothermal process. Also called Helm'holtz free' en'ergy, work function. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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