Standard Electrode Potentials And Electrochemical Cells

Step 1: Kohlrausch's Law:
The molar conductivity of an electrolyte at infinite dilution is the sum of the conductivities of its individual ions.

Step 2: Applications: 1. Determination of Limiting Molar Conductivity of weak electrolytes.
2. Calculation of Degree of Dissociation ( ).
3. Determination of Solubility of Sparingly Soluble Salts.

Step 1: Introduction to Lead Storage Battery - The lead storage battery is a secondary battery that can be recharged.
- It consists of lead (Pb) as the anode and lead dioxide (PbO ) as the cathode, immersed in sulfuric acid (H SO ) electrolyte.

Step 2: Cell Reactions During Discharge

Anode Reaction (Oxidation):

Cathode Reaction (Reduction):

Overall Cell Reaction:

Step 3: Working Principle - During discharge, Pb and PbO get converted into PbSO , releasing electrical energy.
- During charging, the reaction is reversed, regenerating Pb and PbO .