Chapter 21, Problem 84A

Interpretation Introduction

Interpretation: The result of placing all the cells into a single container of electrolyte solution rather than into separate compartments needs to be explained.

Concept Introduction: In an electrochemical cell, there are two electrodes; anode and cathode. At the anode, oxidation takes place and at the cathode reduction takes place. Particularly in electrolytic cells, an electrolyte solution acts as a medium for the exchange of ions between the two electrodes.

Explanation of Solution

In the cell in an automobile battery, there are two half-cells. There is an electrode in an electrolyte for each half-cell. Here, half-cells are in a separate compartment and not in a single container of electrolyte solution. This is to prevent direct chemical contact between oxidation and reduction reactions that creates a potential difference.

Thus, a potential difference in the battery output will not be created if all the cells are placed into a single container of electrolyte solution.