Chapter 14, Problem 84A

Interpretation Introduction

Interpretation: The reason why real gases deviate from ideal behavior needs to be explained.

Concept Introduction: In the case of an ideal gas there is a negligible volume of the molecules and forces between the molecules. Due to this, there is no attraction force between the molecules. An ideal gas follows the ideal gas law. The mathematical expression for an ideal gas is represented as follows:

  $PV=nRT$

Here, P is pressure, V is volume, n is the number of moles, R is the Universal gas constant, and T is temperature.

Explanation of Solution

The molecules of an ideal gas do not attract or repel each other. The ideal gas molecules show the elastic collision between each other and the walls of the container. Here, real gas deviates from ideal behavior because there is an attractive force between real gas molecules. The forces of attraction between molecules result in a non-elastic collision between the molecules.