free energy

English

Noun

free energy (uncountable)

  1. (physics, chemistry) The energy that is available in a particular chemical system to do useful work. In more detail:
    1. The Helmholtz free energy, A (the internal energy of a system minus the product of its entropy and absolute temperature)
    2. The Gibbs free energy, G (the enthalpy of a system minus the product of its entropy and absolute temperature)
  2. Used other than figuratively or idiomatically: see free,‎ energy.
    free energy suppression (the notion that exotic energy systems are deliberately suppressed in order to protect the fossil fuel industry and suchlike)

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Derived terms
  • standard free energy change
  • standard free energy of formation

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References
  • Jeffrey J. W. Baker with Garland E. Allen (1965) Matter, Energy, And Life, Addison-Wesley Publishing Company, Inc., §5.2, page 53
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