Difference between specific conductivity and equivalent conductivity
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Conductivity (or Specific Conductivity)
Conductance is inverse of resistance as seen in the last discussion. If we want to see the factors on which conductance depends, it would be easy for us if we look at resistance. Resistance (R) of a conductor depends upon the length of the conductor and its area of cross section. It is found that resistance is:
directly proportional to the length (l) of the conductor
i.e. R  l
inversely proportional to its area of cross section (A)
i.e. 
Thus 
or ... (i)
Where, (rho) is a constant of proportionality and is given the name specific resistance or resistivity.
Equivalent conductivity of a solution at dilution V is defined as the conductance of all the ions produced from one gram equivalent of the electrolyte dissolved in V cm3of the solution when the distance between the electrodes is one centimetre and the area of the electrodes is so large that whole of the solution is contained between them
Conductance is inverse of resistance as seen in the last discussion. If we want to see the factors on which conductance depends, it would be easy for us if we look at resistance. Resistance (R) of a conductor depends upon the length of the conductor and its area of cross section. It is found that resistance is:
directly proportional to the length (l) of the conductor
i.e. R  l
inversely proportional to its area of cross section (A)
i.e. 
Thus 
or ... (i)
Where, (rho) is a constant of proportionality and is given the name specific resistance or resistivity.
Equivalent conductivity of a solution at dilution V is defined as the conductance of all the ions produced from one gram equivalent of the electrolyte dissolved in V cm3of the solution when the distance between the electrodes is one centimetre and the area of the electrodes is so large that whole of the solution is contained between them
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