explain four factors that are likely to increase the rate of evaporation of water
Answers
(1) Amount of water available:
Rate of evaporation is greater over the oceans than over the continents.
(2) Temperature:
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It is also affected by temperature. As the temperature of air is increased, its capacity to hold moisture also increases.
Any increase in air temperature raises the temperature of water at the evaporation source which means that more energy is available to the water molecules for escaping from liquid to a gaseous state. Hence evaporation is directly proportional to the temperature of evaporating surface. Warmer the evaporating surface, higher the rate of evaporation.
(3) Area of the evaporating surface:
The rate of evaporation is determined by the area of the exposed surface of water. Larger areas of evaporating surface increase the rate of evaporation.
(6) Air-pressure:
Evaporation is also affected by the atmospheric pressure exerted on the evaporating surface. Lower pressure on open surface of the liquid results in the higher rate of evaporation.
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