Question

Why burning is called an irreversible change? Give reason and write another name of irreversible change. ​

Answer 1

Answer:

If we burn a piece of paper, it changes into ash and smoke. Now we cannot combine the ash and smoke to form the original piece of paper. So, the burning of paper is an irreversible change which cannot be reversed.

Explanation:

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Answer 2

Burning is an example of an irreversible change. When you burn wood you get ash and smoke. You cannot change the ash and smoke back to wood again.

another example.

Heating can cause an irreversible change. For example you heat a raw egg to cook it. The cooked egg cannot be changed back to a raw egg again.