$(a)$ Enumerate the changes that take place in a liquid during evaporation.
$(b)$ How is the rate of evaporation affected by changes in the following? Justify your answer.
$(i)$ Temperature
$(ii)$ Wind speed
$(iii)$ Humidity

(N/A) During evaporation,a small fraction of particles at the surface having higher $KE$ (Kinetic Energy) is able to break away from the force of attraction of other particles and gets converted into vapour.
$(b)$ $(i)$ Rate of evaporation increases with temperature because an increase in temperature provides more $KE$ to the particles,allowing more particles to escape the surface.
$(ii)$ Rate of evaporation increases with wind speed because the moving air carries away the water vapour particles,thereby decreasing the concentration of water vapour in the surrounding area.
$(iii)$ Rate of evaporation decreases with humidity because the air is already saturated with water vapour,leaving less space for additional water molecules to evaporate.