Models of adsorption at a line of three-phase contact.
Two model density distributions at a line of three-phase contact for which the adsorptions are readily calculated are analyzed. One of them provides a numerical illustration of a recently found surprising fact about the thermodynamics of adsorption at such contact lines. A form of the line analogue of the Gibbs adsorption equation is conjectured, and it is noted that the conjecture is in principle testable by computer simulation and by experiment.
Widom
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Department of Chemistry, Baker Laboratory, Cornell University, Ithaca, New York 14853-1301, USA.