Question

Both the process of evaporation and boiling involves the change of state from liquid to gas but still they are different from each other. Justify ?
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Answer 1

Evaporation is different from each boiling because

(i) Evaporation is a natural phenomenon, occurs on the surface of the water. Where as boiling is an artificial phenomenon.

(ii) Evaporation is a slow process, whereas boiling is a fast process and it occurs in the bulk of liquid.

Answer 2

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Evaporation is the conversion of liquid into its gaseous state under atmospheric pressure without reaching its boiling point. No external heat is applied to it. Boiling means to convert a liquid into its gaseous state at its boiling point by applying external heat.