Chapter 5.2, Problem 13R

To determine

To predict if a plastic foam be a good thermal conduction or not.

Answer to Problem 13R

It is a good thermal insulator.

Explanation of Solution

Introduction:

The plastic form contains a pack of air molecules which may not easily transferred.

A plastic form can be a good thermal insulator as it contains air particles inside which can carry thermal energy and trap it. Therefore, heat may fail to transfer to the other particles

Conclusion:

Hence, the plastic foam is a good insulator.