How does molar conductivity vary with concentration for strong and weak electrolytes? Explain?

Asked by Topperlearning User | 16th Jun, 2014, 10:17: AM

Expert Answer:

The strong electrolytes are almost completely ionized in aqueous solution at all concentrations. So generally they have a high value of capital lambdam even at high concentrations. But, in concentrated solutions of strong electrolytes the density of ions is quite high which results in inter-ionic interactions. Due to these interactions, the value of capital lambdam lowers at high concentrations. On increasing dilution the ions move apart which leads to the increase in the value of capital lambdam. The molar conductivity of a weak electrolyte increases with decrease in concentration.

Answered by  | 16th Jun, 2014, 12:17: PM