Sponsor Area

Electrochemistry

Question
CBSEENCH12010222

Express the relation between conductivity and molar conductivity of a solution held in a cell.

Solution

The molar conductivity of a solution at a given concentration is the conductance of volume V of a solution containing 1 mole of the electrolyte kept between two electrodes with the area of cross-section A and distance of unit length, the conductivity of  the solution is given by the following relation.

 

  straight capital lambda subscript straight m equals straight k straight A over straight l
Now comma space straight l equals 1 space and space straight A equals space straight V space left parenthesis volume space containing space 1 space mole space of space the space electrolyte. right parenthesis
Therefore comma space straight capital lambda subscript straight m space equals kV