what is Evaporation

Evaporation is the process of conversion of a liquid into its vapour form. It occurs when a liquid absorbs heat from its surroundings.

Evaporation is used to separate dissolved solids from liquids. A good example is obtaining salt from seawater.

When seawater is kept in shallow ponds, the heat of the sun causes the water to evaporate slowly. As the water vapour escapes, solid salt remains behind.

Evaporation occurs continuously wherever water is present, such as drying clothes or drying puddles after rain.