adsorption hysteresis

https://doi.org/10.1351/goldbook.A00161
Adsorption @[email protected] is said to occur when @[email protected] and @[email protected] values deviate from one another.
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 585 [Terms] [Paper]