Gibbs function


the thermodynamic function of a system that is equal to its enthalpy minus the product of its absolute temperture and entropy: a decrease in the function is equal to the maximum amount of work available exclusive of that due to pressure times volume change during a reversible, isothermal, isobaric process.

Origin of Gibbs function

named after J. W. Gibbs
Also called Gibbs free energy, thermodynamic potential. Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for gibbs free energy

Gibbs function

/ (ɡɪbz) /


a thermodynamic property of a system equal to the difference between its enthalpy and the product of its temperature and its entropy. It is usually measured in joulesSymbol: G, (esp US) F Also called: Gibbs free energy, free enthalpy Compare Helmholtz function

Word Origin for Gibbs function

C19: named after Josiah Willard Gibbs (1839–1903), US physicist and mathematician
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Science definitions for gibbs free energy

Gibbs free energy

See free energy.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.