Chapter 14, Problem 15E

Interpretation Introduction

Interpretation:

Fuel cell is to be defined and how it is different from a battery is to be explained.

Concept introduction:

Fuel cell is an electrochemical cell and it converts the potential energy into electricity through an electrochemical reaction of hydrogen fuel with oxygen.

Oxidation is the addition of an electronegative element or the removal of an electropositive element in a chemical reaction.

Reduction is the addition of an electropositive element or the removal of an electronegative element in a chemical reaction.

Electrolysis is the process in which a reaction takes place at electrodes. The positively charged electrode is called anode. The negatively charged electrode is called cathode. During electrolysis, reduction takes place at the cathode and oxidation takes place at the anode.