Question

distinguish between boiling and evaporation

Answer 1

Evaporation is a surface phenomenon which occurs when the partial vapour pressure is less than the equilibrium vapour pressure. ... Difference Between Boiling and Evaporation.Vaporization is a process of phase transition in which a substance, changes its state from liquid to vapour.

Answer 2

BOILING -

• The process of conversion of matter from its liquid state to vapour state(gaseous state) is called boiling.

• Boiling is a bulk phenomenon.

• Heating takes place during boiling.

• An external heat source like burner is required for boiling.

EVAPORATION -

• The process of conversion of a liquid into the vapour stateat any temperature below its boiling point is known as evaporation.

• Evaporation is the surface phenomenon.

• Cooling takes place during evaporation.

• For evaporation, the liquid takes the heat from the surroundings. No external source like burner is required.