Question

explain why 1) when the humidity of all is low ,then the rate of evaporation is high. 2) the rate of evaporation of liquid increases with increasing wind speed

Answer 1

(1)--This will slow down the rate of evaporation. If humidity is high,evaporation is low. High humidity means the air has already high moisture content. If the atmosphere is humid (already has water) , then evaporation will decrease.

(2)-- Generally, when temperature and humidity are constant, and wind speed increases, the rate of evaporation increases as well. When temperature and wind speed are constant, but humidity increases, the rate of evaporation will decrease.



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Answer 2

as evaporation is inversely proportional to the humidity. as evaporation means the amount of moisture in the atmosphere. humidity is the amount of moisture in the atmosphere. when there is already moisture in the atmosphere by evaporation so humidity will be low.
the rate of evaporation increase with increasing wind speed because wind makes the particles of liquid to move faster and change into vapour state.