Conductance equation of dilute mixed strong electrolytes. I. Purely electrostatic relaxation field

Abstract

The relaxation field of purely electrostatic origin for a system of dilute mixed strong electrolytes is computed to the order that will give the linear term in concentration in the conductance equation. The result is rather complicated for solutions of arbitrary composition, but it is simple for a symmetrical electrolyte system. Thus

$$\frac{{\Delta X}}{X} = \frac{{ - \beta \kappa q}}{{3(1 + \sqrt q )}} + \frac{{\beta ^2 \kappa ^2 q}}{6}In \beta \kappa - \frac{{\beta ^2 \kappa ^2 q}}{2} K(b) + 0.05944\beta ^2 \kappa ^2$$