Question

explain the effect of dilution on conductance and molar conductance ​

Answer 1

Answer:

Conductivity changes with the concentration of the electrolyte. The number of ions per unit volume carrying the current decreases on dilution, so conductivity always decreases with decrease in concentration. However, molar conductivity increases with dilution

Explanation:

Effect of Dilution are as follows:

(i) The conductivity of solution increases on dilution. (ii) The specific conductivity decreases on dilution (as number of ions decreases w.r.t. to volume). (iii) The equivalent and molar conductivities increase with dilution.

Molar conductivity increases with a decrease in concentration. This happens because the total volume, V, of the solution containing one mole of electrolyte also increases. Upon dilution, the concentration decreases

Answer 2

The correct question is : Explain the effect of dilution on conductivity and molar conductivity.

Answer:

Conductivity of a solution decreases with decrease in concentration (or increase in dilution) because total number of ions present per unit volume of the solution that carried the current decreases on dilution.

Molar conductivity of a solution increases with decrease in concentration (or increase in dilution) because total volume of solution containing 1 mole of an electrolyte increases on dilution.