Some new expressions concerning individual ionic activities and their physical significance
Abstract
According to local thermodynamic arguments, at constant temperature (T) and zero field strength (E), individual ionic chemical potentials µi are functions of the local number densities and vice versa. In this paper it is shown that the quantities Lki defined by (δki+Lki)=kT(
By considering a hypothetical solution in which the valency of solute → 0 a simple method is developed for treating solution non-ideality in double-layer theory at the Debye—Hückel level. The work is compared with the statistical mechanical treatment of Stell and Lebowitz (J. Chem. Phys., 1968, 48, 3706).