Question

Define Boiling Point, Melting Point, and Evaporation?

Answer 1

Boiling Point:

• It is the temperature at which liquid starts to boil.
• It is the temperature at which the vapor pressure of liquids becomes equal to its atmospheric pressure.

Melting Point:

• The temperature at which solid melts to form a liquid at atmospheric pressure is called its melting point.
• This is the point at which both liquid and solid state coexists at equilibrium.

Evaporation:

• It is the process in which water evaporates from the liquid surface and changes into a gaseous state by the action of heat.
• It plays a very important role water cycle.