Question

rate of evaporation of an aqueous solution decreases with increase in humidity

Answer 1

When the humidity level goes down, it means that the amount of water vapours will go up.

This in turn implies that the air particles do not have the capacity to hold any more water particles and this is when the rate of evaporation does down or decreases.

Filling the gaps becomes time taking thus decreasing the evaporation.

Answer 2

Humdity is the amount of vapour or moisture content prsent in atmosphere

if humidity is high...evaporation will be less as humidity is there...there will be no cooling

hope it hlps