Chapter 22, Problem 21A

At what common temperature will both a block of wood and a piece of metal feel neither hot nor cool when you touch them with your hand?

To determine

The common temperature at which both a block of wood and a piece of metal feel neither hot nor cool.

Explanation of Solution

Introduction:

The heat always transfers from a high temperature to a low temperature or it transfers when there is a temperature difference between the two bodies.

When one person touches a block of wood or a piece of metal and feels neither hot nor cool, then it means the relative temperature between the hand of the person and the piece is zero. There is no temperature difference or both the bodies are at the same temperature. So,the person neither feels hot nor cold.

Conclusion:

Hence, the block of wood and a piece of metal feels neither hot nor cool, andthe relative temperature between the hand of the person and the piece is zero.