rate of evaporation of aqueous solution decreases with increases in humidity?why.

Humidity is basically the amount of water vapour in the air. And evaporation is the vaporization of water into water vapour. So when the humidity is high there are already plenty of water molecules in the air so the water which gets vapourized into water vapour takes time to fill the gaps in the atmosphere and thus rate of evaporation is slow. (It's like filling intermolecular space, only here the space isn't between molecules.)

The above answerr is what my teacher told me.

Here's another possible answer

For a liquid to vapourize it needs to the temperature needs to be at a particular temperature so that this surface phenomena can take place. But due to high amount of water vapours in the atmosphere which is nothing but high humidity the temperature needed to vapourize the liquid isn't reached as the water vapour lowers the surface temperature.

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Humidity is the amount of water vapour present in air .the air around us cannot hold more than a definite amount of water vapour at a given temperature. If the amount if water in air is already high,the rate of evaporation decreases

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Nothng
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humidity :- the water vapour/moisture content present in air is called humidity.
if the water vapour in the air is so much & it cannot hold more water in it. so the rate of evaporation decreases.
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Air aroundus cannot hold more than a definite amount of water vapour at a given temperature which is known as humidity. So, if the air is already rich;inwater vapour, it will not take up more water ; therefore, rate of evaporation of water will decrease.
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the amount of water vapour present in air is humidity.it tells us the dampness of air.if  humidity is less,water evaporates faster.so evaporation is high.if humidity is high ,water evaporates slow and evaporation is less.
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  • high humidity- less evaporation
  • less humidity-high evaporation
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Already there is the presence of water molucles in air due to humidity. so there is low space between the water molucles , the air has moisture.so it can take up more water molucles into the spaces ... so the rate of evapouration is low .
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Moist air or humid air can only hold a definite amount of water. So if we keep a glass of water in dry air and another glass of water in moist air the water of the glass in dry air will evaporate more whereas the one in moist air will evaporate less as the air will reach its saturation point more quickly due to the presence of additional water molecules
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Humidity is the amount of water vapour present in air .the air around us cannot hold more than a definite amount of water vapour at a given temperature. If the amount if water in air is already high,the rate of evaporation decreases
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