Give the main differences between physical changes and chemical c… - Vidyadip

Question

Give the main differences between physical changes and chemical changes.

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Answer

	PHYSICAL CHANGE		CHEMICAL CHANGE
$i$	No, new substance is formed in a physical change.	$i$	New substance is formed in a chemical change.
$ii$	It is a temporart change.	$ii$	A chemical change is a permanent change.
$iii$	It is easily reversible.	$iii$	This process is usually irreversible.
$iv$	Very little heat or light energy is usually absorbed or given out in this process.	$iv$	A lot of heat or light energy is absorbed or given out in this process.
$v$	Mass of substance does not alter.	$v$	Mass of substance does alter in this process.

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