Question

Why are most physical changes reversible?

Answer 1

Physical change: A change that alters some specific property of matter without any change in the composition of its molecules is called a physical change.

Physical changes are reversible because:

• Since they include changes in a substance's physical attributes such as condition, shape, size, colour, and so on, and
• No new substances are generated.
• For example - When we heat water, it turns into water vapour, which then turns back into the water when we cool or condense it.