Question

Differentiate between evaporation and boiling.

Answer 1

Evaporation: Evaporation can generally be defined as a process by which a liquid or solid is transformed into vapour.

Boiling: Boiling can be defined as when any liquid turns into gas when you heat it continuously. It occurs when the heat given is equal to its boiling point.

	Evaporation	Boiling
1	Evaporation is a natural process that occurs when the liquid form changes into the gaseous form; while causing an increase in the pressure or temperature.	Boiling is an unnatural process where the liquid gets heated up and vaporized due to continuous heating of the liquid.
2	Evaporation usually occurs on the surface of the liquid being heated up.	Boiling usually occurs on the entire mass of the liquid that gets heated up.
3	The bubbling effect is not visible in evaporation.	The bubbling effect is visible during the process of boiling.
4	The process of evaporation is usually slower and liquids evaporate below boiling point	The process of boiling is usually much quicker and the liquid boils at boiling point.
5	It takes a longer time to complete since the source of energy is from surroundings.	Boiling requires a shorter period of time since we supply heat to the liquid.