Helmholtz function

American  

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.

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Helmholtz function British  

/ ˈhɛlmhɔlts /

noun

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

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Etymology

Origin of Helmholtz function

First recorded in 1900–05; named after H. L. F. von Helmholtz