helmholtz function

noun

1. the 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.

noun

1. a thermodynamic property of a system equal to the difference between its internal energy and the product of its temperature and its entropySymbol: A, F Also called: Helmholtz free energy