Chapter 6, Problem 6.24QP

Interpretation Introduction

Interpretation: The role of collisions in generating pressure is to be explained.

Concept introduction: According to kinetic molecular theory postulates,

• Particles present in the gas have consistent and random motion. They collide with each other or the walls of their container and these collisions are elastic in nature.
• The average kinetic energy of every gas particles is directly related to temperature. The speed of gas molecules increases with increase in temperature.
• Molecules having low molar mass will move faster than the molecules with high molar mass.

The ratio of force per unit area of an object is defined as pressure. The formula to calculate pressure is,

$P=\frac{F}{A}$

Where,

• $P$ is the pressure.
• $F$ is the force.
• $A$ is the surface area.

To determine: The role of collisions in generating pressure.