CONDENSATION IS THE change of phase of a substance from vapor to liquid. It is the opposite of evaporation, the change of phase from liquid to vapor. The condensation of water is one of the most important physical processes of the Earths climate system. Condensation forms cloud particles and precipitation. It is the main sink of atmospheric water. On Earth, water can be found in the solid, liquid, and gas phases. Evaporation (and sublimation) of water substance, the transport of water vapor, and condensation away from its sources, is the most important heat transport mechanism in the Earth's climate system. Condensation is an extremely important process in the earth's water cycle because it is responsible for the formation of clouds and precipitation.

Weak forces between molecules ...