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Langmuir
January 2025
A.N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Moscow 119071, Russia.
In the proposed paper, a new result is presented, which is as follows: the point on the equilibrium excess adsorption isotherm at which the rate of increase of concentration of a component in the adsorption phase reaches its mean value is the point at which the curvature of the isotherm takes its extreme value. This regularity also holds in the case of the adsorption of gases. This result is confirmed and valid for isotherms of various types.
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