surface excess Gibbs energy

https://doi.org/10.1351/goldbook.S06176
Defined by \[G^{\sigma }=H^{\sigma }- T\ S^{\sigma }=A^{\sigma }- \gamma \ A_{\text{s}}\] where \(H^{\sigma }\) is the @[email protected], \(T\) is the @[email protected], \(S^{\sigma }\) is the @[email protected], \(A^{\sigma }\) is the @[email protected], \(\gamma \) is the @[email protected], and \(A_{\text{s}}\) is the area relative to a @[email protected]
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]