Chapter 17, Problem 91QAP

Interpretation Introduction

Interpretation:

The current supplied by the recharger to a Ni-Cd battery in order to convert 0.133 g of Cd(OH)₂ deposited on the anode back to Cd needs to be calculated

Concept introduction:

The conversion of electrical energy to chemical energy is the basis of electrolytic cells. Here a non-spontaneous reaction is driven by current supplied from an external source.

The charge (C) applied is given as:

$\begin{array}{l}\text{C = I×t -----(1)}\\ \text{where: C = charge in Coulombs}\\ \text{I = current in Ampheres and t = time in seconds}\end{array}$

As per convention: 1 mole of electron carries a charge of 96500 coulombs