what are the factors the effect rate of Evaporation
Answers
(1) Amount of water available:
The Rate of evaporation is greater over the oceans than over the continents.
(2) Temperature:
It is also affected by temperature. As the temperature of the 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 the evaporating surface. Warmer the evaporating surface, the higher the rate of evaporation.
(3) Relative humidity:
The rate of evaporation is closely related to the relative humidity of theair. Since the moisture-holding capacity of air at a given temperature is limited, drier air evaporates more water than moist air.
In other words, the higher the vapor pressure, the lower the rate of evaporation. It is a common experience that evaporation is greater in summer and at mid-day than in winter and at night.
(4) Wind-speed:
Evaporation depends on the wind speed as well. When the winds are light, a thin layer of air just above the surface gets nearly saturated; under the circumstances, the difference between the vapor pressure between ground and air is very small.
This results in very low evaporation. On the other hand, when the wind velocity is high, turbulence is set up in the air. Moisture evaporated from the ground is mixed upward and the vapor-pressure difference between the atmosphere and the surface remains large.
Answer:
The factors the effect rate of Evaporation are:-
(1) Temperature
(2) Surface Area of liquid
(3) Presence and Absence of Substance
(4) Air movement
(5) concentration of moving substance in air