Question

Classify the following change into physical and chemical changes:

Sublimation of camphor.

Answer 1

Physical change: It is a type of change in which there is no change in the substance's chemical properties and no new substance is formed.

• It is a type of reversible change
• Reversible change: It is a type of change that can be reversed easily and completely
• For example melting of ice, freezing of water, etc.

Sublimation: Conversion of the physical state of matter from solid to gas state directly without getting any liquid state between them.

• There is no change in the chemical composition of matter.
• The only physical state of camphor is changing.

Therefore, the sublimation of camphor is the type of physical change.