Helmholtz free energy

English

Etymology

For Hermann von Helmholtz, German physicist.

Noun

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.

   $A=U-TS$ where A is Helmholtz free energy, U is internal energy, T is temperature, and S is entropy.

Translations

measure of the useful work from a constant temperature system etc.

• Chinese:

  Mandarin: 亥姆霍茲自由能／亥姆霍兹自由能 (Hàimǔhuòzī zìyóu néng)

• Finnish: Helmholtzin vapaa energia
• Russian: свобо́дная эне́ргия Гельмго́льца f (svobódnaja enérgija Gelʹmgólʹca)

See also

• Gibbs free energy