Question

What do you mean by equivalent conductivity?
A.It is defined as the conducting power of all the ions produced by dissolving 1gm equivalent of an electrolyte in solution.
B.It is defined as the conducting power of the ions produced by dissolving 10gm equivalent of an electrolyte in the solution
C.It is defined as the conducting power of the ions produced by dissolving 100gm equivalent of an electrolyte in the solution
D.It is defined as the conducting power of the ions produced by dissolving 1000gm equivalent of an electrolyte in the solution

Answer 1

Equivalent conductance of an electrolyte is defined as the conductance of a volume of solution containing a certain amount of weight of dissolved substance when placed between two electrodes that are parallel.

Complete answer:
- Conductivity is the measure of the ease at which an electric charge can pass through a material or aqueous solution containing ions.
- Equivalent conductivity is the specific conductance of an aqueous solution containing 1 equivalent weight of electrolyte dissolved in the solution.
- Hence, it is defined as the conducting power of all the ions produced by dissolving 1gm equivalent of an electrolyte in the solution.

Therefore, the correct option is (A) It is defined as the conducting power of all the ions produced by dissolving 1gm equivalent of an electrolyte in solution.

Note:
Equivalent conductance at infinite dilutions is given by Kohlrausch’s law. The law states that conductivity of ions is constant at infinite dilutions and does not depend on the respective ions present in the solution.