22)
Molar conductivity increases with
decrease in concentration This is
because the total volume, V, of solution
containing one mole of electrolyte also
increases It has been found that decrease
in k on dilution of a solution is more
than compensated by increase in its
volume Physically, it means that at a
given concentration, Lm can be defined
as the conductance of the electrolytic
solution kept between the electrodes of a
conductivity cell at unit distance but
having area of cross section large enough
to accommodate sufficient volume of
solution that contains one mole of the
electrolyte