CHAP. 11: ELECTROCHEMISTRY [CONTENTS] 365
11.3.7 Concentration dependence of molar conductivity.
Molar conductivity usually decreases with increasing concentration of the electrolyte. In strong
electrolytes it is roughly a linear function of the second root of concentration
Λ = Λ∞−a√
c. (11.35)whereais a temperature-dependent positive number. This relation does not apply for weak
electrolytes.
Note:The character of the experimental dependence of Λ oncenables to find out whether
an electrolyte is strong or weak.