Question

Comments on The following statement (a) evaporation produces cooling effect (b) rate of evaporation of an aqueous solution decreases with increase in humidity

Answer 1

Evaporation produces a cooling affect because when a substance is about to evaporate it absorbs its latent heat from its surroundings giving out heat will appear to be cooled since the lost in heat. ... By absorbing energy away from the surrounding in the process of evaporation it resulted to cooling effect.

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.

Answer 2

Evaporation produces a cooling affect because when a substance is about to evaporate it absorbs its latent heat from its surroundings giving out heat will appear to be cooled since the lost in heat. ... By absorbing energy away from the surrounding in the process of evaporation it resulted to cooling effect.

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.

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