Electrochemistry

  • Question
    CBSEENCH12010333

    Express the relation among cell constant, the resistance of the solution in the cell and conductivity of the solution. How is molar conductivity of a solution related to its conductivity?

    Solution

    The conductivity (k) of the solution in a cell is the reciprocal of its resistivity.

      straight k equals space 1 over straight R open parentheses 1 over straight a close parentheses

    The quantity  1/2  is cell constant.

    L --> Distance between 2 electrodes

    a --> Area of cross section

    R -->  Resistance
    Also comma space conductivity comma space straight k equals space fraction numerator Molar space conductivity over denominator Volume space of space solution end fraction

thus comma space molar space conductivity space equals space kV

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