Chapter 21, Problem 21.117P

Interpretation Introduction

Interpretation:

In order to minimize the corrosion, it should be explained that whether overhead wire or the rails has to be connected to the positive terminal.

Concept Introduction:

Oxidation: The gain of oxygen or the loss of hydrogen or the loss of an electron in a species during a redox reaction is called as oxidation.

The natural process in which a refined metal is converted into more chemically stable form is termed as corrosion. It is an oxidation process.