Preferred Label : electrocapillary equation;
IUPAC definition : A form of the Gibbs adsorption equation which includes an expression of the phenomenon
of electrocapillarity: \[s\ \mathrm{d}T- \tau \ \mathrm{d}p \mathrm{d}γ σ {\alpha
}\ \mathrm{d}E \sum \mathit{γ }_{j}\ \mathrm{d}μ _{j} 0\] where s is the surface excess
of entropy of unit area of interphase, T is the temperature, τ is the thickness or
excess volume of unit area of the interphase, p is the external pressure, γ is the
interfacial tension, σ α is the free surface charge density on phase α (areal amount
of charge on the surface of phase α), E is the generalized potential, Γ j is the surface
excess, µ j is the chemical potential and j is an electrically neutral component of
one or other of the phases; the sum is over all the components but one in each phase.;
Origin ID : E01942;
See also
A form of the Gibbs adsorption equation which includes an expression of the phenomenon
of electrocapillarity: \[s\ \mathrm{d}T- \tau \ \mathrm{d}p \mathrm{d}γ σ {\alpha
}\ \mathrm{d}E \sum \mathit{γ }_{j}\ \mathrm{d}μ _{j} 0\] where s is the surface excess
of entropy of unit area of interphase, T is the temperature, τ is the thickness or
excess volume of unit area of the interphase, p is the external pressure, γ is the
interfacial tension, σ α is the free surface charge density on phase α (areal amount
of charge on the surface of phase α), E is the generalized potential, Γ j is the surface
excess, µ j is the chemical potential and j is an electrically neutral component of
one or other of the phases; the sum is over all the components but one in each phase.
