Question

Explain why the rate of evaporation of an aqueous solution decreases with increase in humidity?

Answer 1

Hint We should know that evaporation results in the production of cooling. This is based on the fact that when a liquid evaporates. It takes the latent heat of vaporization from another matter, which it touches. Based on this concept we have to solve this question.

Complete step by step answer:
We know that the moisture that is present in the atmosphere is called humidity.
On a day with dry atmosphere it is known to us that it can hold more water molecules than a humid atmosphere. This is because a dry atmosphere, as it is known by us, describes lack of water molecules and therefore it has the attractiveness to get hold of more water molecules.
Hence, we know that the rate of evaporation of aqueous solution decreases with the increase of humidity and vice versa.
That is why we can say that an increase in humidity in the atmosphere decreases the rate of evaporation of an aqueous solution.
Thus the statement that is mentioned in the question is justified.

Note An aqueous solution is defined as a solution in which the solvent is considered to be as water. In case of any chemical equations, we express this aqueous solution as (aq) to the relevant chemical formula.
In an aqueous solution, the solute is dissolved by the water and has few particles in it. This makes the particle more random in the motion. Moreover, we can say that pure water has a low concentration of ions and so it does not conduct electricity.