Explanation of some phenomena using Kinetic THEORY

Basic Science JSS2 Second Term

WEEK SEVEN

Explanation of some phenomena using Kinetic THEORY

Content

REFERENCE
Precious seed BASIC SCIENCE FOR JUNIOR SECONDARY SCHOOLS BOOK 2

TOPIC: Explanation of some phenomena using Kinetic THEORY

How does a gas exert pressure on the walls of its container?

The gas particles are in constant and continual collisions with the walls. The collisions give rise to the force. The force per unit area exerted on the walls is the pressure of the gas.

Why is energy required to evaporate a liquid?

There are intermolecular forces between liquid molecules.

Only the fastest-moving molecules will have large enough energy to overcome the intermolecular forces. Hence energy is required to break the attractive forces.

Why does…