WAEC - Physics (2012 - No. 22)
Which of the following factors decreases the rate of evaporation of a liquid?
increase in pressure over the liquid
lowering the boiling point
decreasing in humidity
wind
Paskaidrojums
higher pressure tends to inhibit the process of evaporation. Higher pressure "pushes" the vapor molecules back into the liquid, making it harder for them to evaporate.