Phrase guide

Gibbs 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

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.

Definition source: English Wiktionary via Wiktextract

Usage: physical, uncountable

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

Examples

  • ΔG=ΔH-TΔS and G=H-TS where G is Gibbs free energy, H is enthalpy, T is temperature, and S is entropy.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

For Josiah Willard Gibbs, American physicist.

Across languages

Translations

6 source translations are retained for this English entry.

  • Catalan: energia lliure de Gibbs — difference between the enthalpy of a system and the product of its entropy etc.
  • Chinese Mandarin: 吉布斯自由能 (Jíbùsī zìyóu néng) — difference between the enthalpy of a system and the product of its entropy etc.
  • Finnish: Gibbsin energia — difference between the enthalpy of a system and the product of its entropy etc.
  • German: Gibbs-Energie — difference between the enthalpy of a system and the product of its entropy etc.
  • German: freie Enthalpie — difference between the enthalpy of a system and the product of its entropy etc.
  • Russian: свобо́дная эне́ргия Ги́ббса (svobódnaja enérgija Gíbbsa) — difference between the enthalpy of a system and the product of its entropy etc.