What are the difference between physical and chemical change class 9

Difference between physical and chemical change

Meaning of Physical change- physical alteration is one that does not result in the formation of a new substance.

Meaning of Chemical change- Any alteration that results in the formation of new material is referred to as a chemical change.

Difference between physical and chemical change

Physical change

Composition- Physical attributes shift throughout time. The chemical composition, on the other hand, remains unchanged.

Longevity- Changes that are just temporary

Change in energy- Energy absorption is little to non-existent.

Creation of Products- There are no new items created.

Reversibility- Can be reversed or not.

Examples- Paper being torn

Chemical change

Composition- Physical properties change. Additionally, chemical compositions also change.

Longevity-Permanent changes

Change in energy- More absorption and creation of energy occurs.

Creation of Products- New products always get formed.

Reversibility- Reversal is extremely difficult or impossible.

Examples- Burning of paper

Know more Signs of a chemical change

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