Question

Evaporation causes cooling because
(A) the intermolecular force of attraction of a substar in liquid state is stronger the vapour state. than that in
(B) during evaporation the highly energetic liquid molecules escape from the surface of the liquid leaving the lower energetic molecules in the bulk.
(C) the mass of liquid decreases after evaporation due to conversion of some liquid molecules into vapour (D) the uniform surface of a liquid radiate heat energy decreasing the average energy of the bulk molecules.​

Answer 1

Answer:

The factors that decide the rate of evaporation are:

Temperature

Surface area exposed

Partial pressure of liquid in the air above it.

When air is blown above the surface of liquid, it will take away the liquid carrying air particles from the air above the liquid, resulting in decrease in humidity and increase in rate of evaporation.

(b) The factors that decide the rate of evaporation are:

Temperature

Surface area exposed

Partial pressure of liquid in the air above it.

On increasing the surface area, the number of molecules in contact at the surface of liquid increases, and evaporation takes place rapidly.

(c) The factors that decide the rate of evaporation are:

Temperature

Surface area exposed

Partial pressure of liquid in the air above it.

The increase in temperature increases the kinetic energy of the molecules, they escape the force of attraction of molecules and evaporate faster.