Ncert Exercises & Solutions

The molar conductivity of ionic solution depends on:

(a)	Temperature
(b)	Distance between electrodes
(c)	Concentration of electrolytes in solution
(d)	Surface area of electrodes

The correct choice among the given is:

1. (a, b)
2. (b, c)
3. (c, d)
4. (a, c)

Molar conductivity is the conductivity due to ions furnished by one mole of electrolyte in solution. Molar conductivity of ionic solution depends on

(i) Temperature Molar conductivity of electrolyte solution increases with increase in temperature.

(ii) Concentration of electrolytes in solution As concentration of electrolyte increases, molar conductivity decreases.

∴ λ = \frac{κ}{c}