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gibbs free energy

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Gibbs function

–noun
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.
Also called Gibbs free energy, thermodynamic potential.


Origin:
named after J. W. Gibbs
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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free energy  
n.  
  1. A thermodynamic quantity that is the difference between the internal energy of a system and the product of its absolute temperature and entropy.

  2. A thermodynamic quantity that is the difference between the enthalpy and the product of the absolute temperature and entropy of a system. Also called Gibbs free energy.

Gibbs free energy  
n.  See free energy.

[After Josiah Willard Gibbs.]
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Science Dictionary
Gibbs free energy  
See free energy.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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