What is evaporation? Explain with an example.

Evaporation is a method of separation used to obtain a dissolved solid from a liquid by heating the mixture. In this process, the liquid changes into vapor and leaves behind the solid substance.

This method is mainly used when the solid is dissolved completely in the liquid and cannot be separated by filtration.

A common example is obtaining salt from seawater. When seawater is heated or left under the sun, the water evaporates, and salt remains behind as a solid.

In simple terms, evaporation removes the liquid part of a solution, leaving the solid substance behind.