Question

State the kinetic theory of matter.

Answer 1

Kinetic theory of matter

• All matter is made of tiny particles called atoms or molecules.
• The particles of matter are always in constant random motion and collide with other particles. As a result of these inter-particle collisions, they possess kinetic energy.
• There is a force of attraction between the particles of matter. This force is known as the inter-particle or intermolecular force of attraction and is responsible for the binding of molecules of matter together.
• There are empty spaces between the particles of matter. These are known as inter-particle or inter-molecular spaces.
• If the intermolecular force of attraction is more, the particles are bound together strongly and have less inter-particle space.
• If the inter molecular force of attraction is less, and the particles are present far apart as the inter-particle space is more.
• The kinetic energy of the particle increases with an increase in temperature and a decrease in temperature.