Molar conductivity: The conductivity of a colume of solutin containgin on egram molecular weight of the electrolyte placed between two parallel electrodes separated by a distance of unit length of 1 meter is called molar conductivity `(^^_(m))`
Relation between conductivity and molar conductivity :
`^^_(m)=k/c,therefore c=` constant
`to ` The conductance of a solutin measured in a conductivity cell.
`to ` By using the conductivity cells
Resistance `(R )=(l)/(kxxA)`
l = distance between electrodes, A = Area of cross section, k= conductivity
`G ^(**)=l/A=` cell constant
`to` Cell constant is measured by measuring the resistance of the cell containing a solution whose conductivity is known.
`to` Cell constant determined is used for measuring the resistance (or) conductivity.
`therefore` molar conductivity `^^_((m))=x/c`