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NounEdit

free energy (uncountable)

  1. (physics) 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)

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ReferencesEdit

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