Melting, boiling and evaporation — Explain

Question
Question

Why does an object feel cooler when a liquid evaporates from its surface?

Answer

During evaporation, the most energetic particles escape from the liquid, leaving behind particles with lower average kinetic energy, so the temperature of the remaining liquid falls. Since the liquid is in contact with the object, heat then flows from the object to the cooler liquid, cooling the object.

10 / 10

← → arrow keys to navigate

Lesson complete You've finished all 10 sections of Melting, boiling and evaporation.