Question

Cooling always accompanies evaporation because

A air molecules cool the liquid surface
B the more energetic molecules leave the liquid
C there are fewer liquid molecules left in the liquid
D the escaped molecules return to the liquid.

Answer 1

B) THE MORE ENERGETIC MOLECULES LEAVE THE LIQUID

Answer 2

Evaporation is a cooling processbecause when liquid turns to gas, it needs more energy, and so it has to take that energy from its surroundings. The energy is in the form of heat, and when the heat energy leaves with theevaporating liquid, the surroundings get cooler.