TheGeoRoomClimatology

Definition of the Day
Overlandflow
The unconcetrated movement of water along slopes as sheetwash or concetrated in rills

Changes of State

Water exists in 3 forms:liquid,gas and solid.The energy required to change state without altering temperature is called latent heat.Latent heat can be absorbed or stored.

Evaporation

Change from liquid to gas;latent heat is absorbbed.It takes 600 calories to change 1gram of water into water.

Condensation

Change from gas to liquid.
Latent heat is released.
It takes 600 calories of energy to change 1gram of air into liquid.

Melting

Change from solid to gas
Latent heat is absorbed.
60 calories of energy are needed to change 1gram of ice into liquid.

Freezing

Liquid to Ice.Latent heat is released
60 calories are needed to change 1gram of water into ice.

Sublimation

Direct change of solid to gas.
Latent heat is absorbed.
680 calories are needed to change 1gram of ice into air(water vapour).

Deposition

Direct change from gas to ice.
Latent heat is released.
change of state
image source by GEODe earth science



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