Question

Difference between physical and chemical chnage by enlisting 4 properties

Answer 1

Dear student

BASIS FOR COMPARISON	PHYSICAL CHANGE	CHEMICAL CHANGE
Meaning	Physical changes are those changes, where there is no change in the mass of the substance . like change of matter like from solid to liquid; liquid to gas or vice versa.	Chemical changes are those changes, where there is the formation of the new substance and such changes are permanent.
It affects	It affects only physical properties of the material like size, colour and shape, etc.	It affects physical as well as the chemical properties of the material.
Produces	No new substance is formed.	Chemical changes always produce new substances.
Energy	There is no energy production during physical changes.	The energy is always required or produced during the chemical changes.
Reversible/Irreversible	Physical changes are generally reversible.	Chemical changes are irreversible or some time reversible also.

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