Question

Explain why gases experience more ideal behavior as temperature increases and pressure decreases.

Answer 1

For a gas to be ideal, two conditions should be followed.

1. There should be no intermolecular force acting among the molecules of gas.

2. Gas molecules should have negligible volume.

So, for following above two conditions, some arguments are given below:

• As temperature increases, molecules will move apart. Hence they can have negligible intermolecular force of attraction.
• As pressure decreases, binding force decreases, means, molecules are free to escape apart. Again having less intermolecular force of attraction.