Question

Differentiate between physical change and chemical change.​

Answer 1

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Related Questions

Difference between physical and chemical change?

Answer

Hint: A chemical change is a permanent change and it is irreversible in nature.

A Physical change is a temporary change and it is reversible in nature. It affects only physical properties i.e. shape, size, etc. ..

Complete step by step answer:

Physical change Chemical change

Only physical changes like odour, physical state, density, volume etc. changed and chemical properties remain unchanged The chemical composition and chemical properties undergo a change

No new substance is formed in a physical change. A new substance is formed in a physical change.

Very little or no energy in the form of heat, light or sound is usually absorbed or given out in a physical change A chemical change is always accompanied by absorption or evolution of energy

It is a temporary change It is a permanent change

The original form of substance can be regained by simple physical method Original substance cannot be obtained by simple physical method

It is reversible It is irreversible

Answer 2

Answer:

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A chemical change is a permanent change. A Physical change affects only physical properties i.e. shape, size, etc. ... Some examples of physical change are freezing of water, melting of wax, boiling of water, etc. A few examples of chemical change are digestion of food, burning of coal, rusting, etc