A damp cloth is laid on the forehead of someone with a fever. As water evaporates from the cloth, the skin below feels cooler because evaporation
Question 1 Report
A damp cloth is laid on the forehead of someone with a fever. 
As water evaporates from the cloth, the skin below feels cooler because evaporation
Answer Details
The correct answer is removes energy from the skin as the fastest particles escape. As water evaporates from the damp cloth, the most energetic particles escape from the surface, taking thermal energy away from the cloth and the skin beneath it. This lowers the average kinetic energy of the remaining water and cools the skin. Evaporation does not seal warm air against the skin, does not add heat energy, and its cooling effect is well established - not "no effect."
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