Definie conductivity and molar conductivity for the solution of an electrolyte. Discuss their variation with concentration.

Explanation

Conductivity : Conductivity of a solution is equal to the conductance of a soluton of 1 cm length and cross section area of 1 square cm. It may also be define as athe conductance of in centimeter cube fo the conductor . It is represented by the symbol Kappa (K). Mathematically we can write K=1/p here p is resistively hte unit of K is `"ohm"^(-1) cm^(-1)` or `S cm^(-1)` .
The conductivity, K of an electrolytic solution depends on the concentration of the electrolyte , nature of solvent and temperature.
Molar conductivity : Molar conductivity of a solution at a given concentration is the conductance of the volume V of solution A and distance of unit lenght. Therefore ,
`" "^^^m=(k)/(C)`
`" "` Or
Molar conductivity increases with decreases in concentration . When concentration approaches zero, the molar conductivity is known as limiting molar conductivity.
The value of the constant 'A' for a given solvent and temperature depends on the types of electrolyte i.e., the charges on the cation and anion produced on the dissociation on the electrolyte in solution.