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Physical and Chemical Changes

Both boiling ...

Question

Both boiling and evaporation are physical changes as no new substance is formed, and both the process can be easily reversed by changing the temperature.

A

True

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B

False

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Solution

The correct option is A True
Boiling - The process in which a liquid on heating changes into vapour is called boiling. The temperature remains constant during boiling.
Evaporation - The process in which a liquid changes into vapour by absorbing heat energy from its surroundings is called evaporation.
Example -formation of clouds and rain.
It takes place below the boiling point in liquid.
Both boiling and evaporation are physical changes as no new substance is formed, and both the process can be easily reversed by changing the temperature.
Thus, the given statement is true.

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