Helmholtz free energy

Helmholtz free energy

  1. (physics, thermodynamics) A measure of the useful work obtainable from a constant temperature, constant volume thermodynamic system; more precisely, the difference between internal energy (of a system) and the product of its absolute temperature and entropy.
    A = U - T S where A is Helmholtz free energy, U is internal energy, T is temperature, and S is entropy.
  • Russian: свобо́дная эне́ргия Гельмго́льца

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