Chapter 14, Problem 14.18P

Interpretation Introduction

Interpretation:

Reason behind constant voltage while discharge cycle continues has to be given.

Concept Introduction:

A rechargeable battery is termed as secondary cell. It is different from primary cells that once discharge cannot be charged again and hence need to be discarded. Lead acid battery is conventional rechargeable battery that possess charge capacity of $83.4\text{ A}\cdot \text{h}$. Reaction that occurs in this battery is given as follows:

  $\text{Pb}\left(s\right)+{\text{PbO}}_2+2{\text{H}}_{\text{2}}{\text{SO}}_4\rightleftharpoons 2{\text{PbSO}}_4+2{\text{H}}_{\text{2}}\text{O}$