GEOG 1112 Chapter Notes - Chapter 4: Vapor Pressure, Dew Point Depression, Dew Point
28 Nov 2017
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Document Summary
Water in the atmosphere in its 3 phases water vapor, liquid water and ice. Evaporation the process by which water is converted from liquid form into a gaseous state, water vapor; results when water molecules at the surface of liquid water gain enough energy to escape as vapor into the air. Lots of latent heat required to change liquid water to vapor, which is why evaporation occurs more rapidly over warm surfaces. Evaporation is greater when the atmospheric pressure is low, wind speed is high and there is relatively little water vapor in the air. When the number of molecules leaving the surface of the liquid is the same as the number entering it means there is no net change. Equilibrium a situation in which there is no net change. Reasons to measure the amount of water vapor in the atmosphere:
