Question

How do You find Molar Conductivity at Infinite Dilution?

Answer 1

The Molar conductivity at an infinite solution can be defined as:

1. According to Kohlrausch's law, When the excess solvent is added, the molar conductivity ( conductivity of ions from one mole of electrolyte) is expressed as the sum of the contribution from its individual ions.
2. The conductivity of the solution of a given ionic substance depends upon its concentration.
3. As the concentration decreases, the change in conductivity begins to change in a linear scale on concentration whereas at high concentration the change in conductivity versus concentration becomes increasingly non-linear scale due to the influence of adjacent ions on the conductivity of ions in solution.

The above points clearly explain the determination of molar conductivity at infinite dilution.