IUPAC - surface excess Helmholtz energy (S06177)

surface excess Helmholtz energy

https://doi.org/10.1351/goldbook.S06177

Defined by:

A^{σ} = U^{σ} - T S^{σ}

where

U^{σ}

is the surface excess energy,

T

is the thermodynamic temperature, and

S^{σ}

is the surface excess entropy.

Source:
PAC, 1972, 31, 577. (Manual of Symbols and Terminology for Physicochemical Quantities and Units, Appendix II: Definitions, Terminology and Symbols in Colloid and Surface Chemistry) on page 599 [Terms] [Paper]

Citation: 'surface excess Helmholtz energy' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.S06177 RIS BibTex EndNote

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Last revised: February 24, 2014

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surface excess Helmholtz energy