A form of the
Gibbs adsorption equation which includes an expression of the phenomenon of
electrocapillarity:
where
is the
surface excess of
entropy of unit area of
interphase,
is the temperature,
is the thickness or excess volume of unit area of the
interphase,
is the external pressure,
is the
interfacial tension,
is the free
surface charge density on phase
(areal amount of charge on the surface of phase
),
is the generalized potential,
is the
surface excess,
is the
chemical potential and
is an electrically neutral component of one or other of the phases; the sum is over
all the components but one in each phase.
Source:
PAC, 1986, 58, 437
(Interphases in systems of conducting phases (Recommendations 1985))
on page 446
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.
