What is meant by evaporation? How is this process different from boiling?
(N/A) Evaporation is the phenomenon of the change of a liquid into vapours at any temperature below its boiling point.
| Evaporation | Boiling |
| $1.$ Evaporation occurs on its own at all temperatures. | $1.$ Boiling occurs at a particular temperature when the liquid is heated. |
| $2.$ Evaporation is a surface phenomenon,i.e.,it takes place only from the surface of the liquid. | $2.$ Boiling is a bulk phenomenon,i.e.,it involves the formation of vapours from the entire liquid. |
| $3.$ Evaporation causes a cooling effect. | $3.$ Boiling does not cause any cooling effect. |
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