Surface chemical potential

{
  "id": "MLC-T-CHM-011630",
  "term": "Surface chemical potential",
  "field": "Chemistry",
  "definition": "The change in the Gibbs energy of a system when an infinitesimal amount of a substance is added to the surface phase, while keeping temperature, pressure, and the amounts of other components constant. It represents the partial molar Gibbs energy of a component at the interface. This potential drives mass transfer to and from the surface.",
  "subject": "Physical and Biophysical Chemistry",
  "see_also": [
    "Gibbs energy",
    "chemical potential",
    "surface excess Gibbs energy",
    "surface excess Helmholtz energy"
  ],
  "references": [
    "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 602 (https://doi.org/10.1351/pac197231040577)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/surface-chemical-potential/"
}