Express the relation among cell constant, resistance of the solution in the cell and conductivity of the solution. How is molar conductivity of a solution related to its conductivity?
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The conductivity of a solution is defined as the reciprocal of the resistivity.
Thus
k = (1/R) x (L/A)
where k = conductivity
R = resistance
L = Length
A = Area
The term (L/A) is defined as the cell constant of the cell and is the ratio of length and area of the plate.
also conductivity is given by the relation :
k = molar conductivity/volume
=> molar conductivity = conductivity x volume
Hence the molar conductivity is defined as the product of conductivity and volume.
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