Question

Express the relation between conductivity and molar conductivity of a solution

Answer 1

Answer:

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∧m=kV

Explanation:

∧m=K×1000/M

K=kappa=conductivity

M=molarity

Molar conductivity:Molar conductivity of a solution is given by concentration of volume of a solution containing 1 mole of the electrolyte kept between two electrodes with the area of cross-section A & distance of unit length.

                          ∧m=kA/l

Now,l=1 & A=V(Volume containing 1 mole of the electrolyte.)

Therefore;

                           ∧m=kV

Molar conductivity increases with a decrease in concentration.This is because the total volume V of the solution containing one mole of the electrolyte increases on dilution.

Answer 2

Answer:

The molar conductivity of a solution at a given concentration is the conductance of volume V of a solution containing 1 mole of the electrolyte kept between two electrodes with the area of cross-section A and distance of unit length, the conductivity of the solution is given by the following relation.