Difference Between Physical Change and Chemical Changes

Physical Changes

Chemical Changes

No new substance is formed

New Substance is formed

This change is reversible

This change is normally irreversible

Very little heat or light energy is absorbed or given out in Physical change

A lot of heat or light energy is involved in process

It is also called Physical Reaction

It is also called Chemical Reaction

Example

• Interconversion of States of matter is Physical change
• Tearing of paper

Example

• Burning is a chemical reaction
• Cooking of food