Gibbs-Helmholtz equation

proper noun

An equation for calculating changes in the Gibbs free energy of a system as a function of temperature: ((∂(G/T))/(∂T))ₚ=-H/(T²), where H is the enthalpy, T the absolute temperature and G the Gibbs free energy of the system, all at constant pressure p.

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Meanings

proper nounthe Gibbs-Helmholtz equation
  1. natural sciencesAn equation for calculating changes in the Gibbs free energy of a system as a function of temperature: ((∂(G/T))/(∂T))ₚ=-H/(T²), where H is the enthalpy, T the absolute temperature and G the Gibbs free energy of the system, all at constant pressure p.

Origin

Named after Hermann von Helmholtz (who introduced it in an 1882 paper) and Josiah Willard Gibbs.

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Cite this entry
APA

Gibbs-Helmholtz equation. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/Gibbs-Helmholtz%20equation

MLA

“Gibbs-Helmholtz equation.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/Gibbs-Helmholtz%20equation. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “Gibbs-Helmholtz equation,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/Gibbs-Helmholtz%20equation.

Source: Gibbs-Helmholtz equation on Wiktionary, CC BY-SA 4.0.