Phrase guide

Helmholtz free energy

noun · 1 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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1

noun

Meaning 1

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.

Definition source: English Wiktionary via Wiktextract

Topics: natural-sciences, physical-sciences, physics, thermodynamics

Examples

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

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

For Hermann von Helmholtz, German physicist.

Across languages

Translations

7 source translations are retained for this English entry.

  • Chinese Mandarin: 亥姆霍茲自由能 /亥姆霍兹自由能 (Hàimǔhuòzī zìyóu néng) — measure of the useful work from a constant temperature system etc.
  • Finnish: Helmholtzin vapaa energia — measure of the useful work from a constant temperature system etc.
  • German: freie Energie — measure of the useful work from a constant temperature system etc.
  • German: Helmholtz-Potential — measure of the useful work from a constant temperature system etc.
  • German: helmholtzsche freie Energie — measure of the useful work from a constant temperature system etc.
  • German: Helmholtz-Energie — measure of the useful work from a constant temperature system etc.
  • Russian: свобо́дная эне́ргия Гельмго́льца (svobódnaja enérgija Gelʹmgólʹca) — measure of the useful work from a constant temperature system etc.