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(B) The molar conductivity at infinite dilution,denoted as $\Lambda_m^\circ$,represents the limiting value of molar conductivity when the concentratio

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remain the same

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(B) The molar conductivity at infinite dilution,denoted as $\Lambda_m^\circ$,represents the limiting value of molar conductivity when the concentration of the electrolyte approaches zero (i.e.,at infinite dilution). Since the solution is already at infinite dilution,the degree of dissociation of the weak electrolyte is already at its maximum value. Adding more water to an already infinitely dilute solution does not change the concentration of ions or the degree of dissociation. Therefore,the molar conductivity remains constant and does not change.

$A$ conductivity cell with two electrodes (shaded sides) is half-filled with an infinitely dilute aqueous solution of a weak electrolyte. If the volume is doubled by adding more water at a constant temperature,the molar conductivity of the cell will -

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