The congruence of the adsorption isotherm with respect to the electrode potential or charge and the choice of an independent electric variable

摘要: Summary In a strictly thermodynamic approach to the investigation of adsorption isotherm, choice an electric variable is no fundamental importance and determined by considerations expediency or convenience. This not case, however, when supplemented assumption congruence isotherm with respect electrode potential charge. These assumptions are only compatible provided double-layer capacity in supporting electrolyte solution, C0, does differ from capacity, C′, at complete surface coverage adsorbed substance. If C0 markedly exceeds C′ as, for example, case aliphatic compounds on mercury, better agreement experimental data. Moreover, this corresponds clear consistent physical picture layer presence molecules organic substance (the model two parallel capacitors).