Interpretation: The overall chemical equation in lead storage automobile battery with oxidized and reduced species during charging and recharging process needs to be determined.
Concept Introduction: In the
The EMF of the cell can be calculated with help of electrode reduction potential values.
Answer to Problem 33A
Oxidized species = Solid lead
Reduced species = Lead ions in PbO2
These batteries can recharge because passing electricity can reverse the reaction to form reactants again.
Explanation of Solution
In a lead storage battery, lead is anode and a grid of lead is cathode with lead dioxide (PbO2). The battery contains 38% of sulphuric acid as an electrolyte solution.
As battery remains in use the concentration of sulphuric acid changes due to given reactions:
When battery recharge, the reverse reaction occurs which converts lead sulphate to
When battery recharge, the reverse reaction occurs which converts lead sulphate to
Chapter 18 Solutions
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