Referred to unit of mass of the solid, the difference (at constant temperature) between
the
enthalpy of a solid completely immersed in a
wetting liquid, and that of the solid and the liquid taken separately. It must be specified
whether the solid in the initial state is in contact with vacuum or with the vapour
of the liquid at a given
partial pressure. Measurements of the
enthalpy of
wetting of a solid equilibrated with varying relative pressures of the vapour of a pure
wetting liquid may be used to derive the differential
enthalpy of adsorption of the vapour.
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 605
Cite as:
IUPAC. Compendium of Chemical Terminology, 2nd ed. (the "Gold Book"). Compiled by
A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford (1997).
XML on-line corrected version: http://goldbook.iupac.org (2006-) created by M. Nic,
J. Jirat, B. Kosata; updates compiled by A. Jenkins. ISBN 0-9678550-9-8.
https://doi.org/10.1351/goldbook.
