Gibbs free energy

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English[edit]

Etymology[edit]

For Josiah Willard Gibbs American physicist

Noun[edit]

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Gibbs free energy ‎(uncountable)

  1. (physics, chemistry, thermodynamics) The difference between the enthalpy of a system and the product of its entropy and absolute temperature: a measure of the useful work obtainable from a thermodynamic system at constant temperature and pressure.
     \Delta G = \Delta H - T \Delta S and  G = H - T S where G is Gibbs free energy, H is enthalpy, T is temperature, and S is entropy.

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