Question

express the relation between conductivity and molar conductivity of a solution held in a cell​

Answer 1

∧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