On Conditions of Change of Sign of the Rehbinder Effect in the Case of Single-Component Adsorption According to the Frumkin Isotherm

摘要

Thermodynamic criteria of the "positive" (a decrease in surface hardness) and "negative" (an increase in surface hardness) Rehbinder effect are studied in terms of an earlier-proposed theory of adsorption on a solid surface that takes into account its deformation. Single-component adsorption according to Frumkin isotherm is considered. The conditions for transition from surface stretching in the presence of a "positive" Rehbinder effect to its compression and appearance of the "negative" effect is considered numerically and analytically.