Question

State Kohlrausch's law of independent migration of ions. Why does the conductivity of a solution decrease with dilution?

Answer 1

Kohlrausch's law of independent migration of ions states that the limiting molar conductivity of an electrolyte can be represented as the sum individual contributions of its cations & anions.

As a solution is diluted, the number of ions per unit volume of the solution also decreases and since the limiting molar conductivity of an electrolyte is a direct function of its cations and anions, the conductivity of the solution also decreases