Concentration dependence of electrolyte conductance. Part 2.—Comparison of experimental data with the Fuoss-Onsager and Pitts treatments

Abstract

The Fuoss-Onsager (F) and Pitts (P) treatments of electrolytic conductance have been compared using 44 sets of experimental results for 1-1 salts in water. The comparison shows that the two-parameter version of (F) involving Λ₀ and the closest distance of approach a does not satisfactorily fit the experimental results. The three-parameter version of (F) involving Λ₀, a, and an association constant K_A can be fitted closely to experimental data, but the values of a required are unreasonably small and the association constant is negative in nearly all cases, which is physically impossible. The (P) theory which involves only Λ₀ and a, can be fitted closely to experiment using reasonable values of a, and is therefore considered more satisfactory than the (F) theory.