Conceptual Physics (12th Edition)

Published by Addison-Wesley
ISBN 10: 0321909100
ISBN 13: 978-0-32190-910-7

Chapter 17 - Think and Explain: 54

Answer

Water evaporates from the wet cloth, and cools the cloth by evaporation. It is the higher-energy water molecules that leave first, lowering the average temperature of the liquid that is left behind. The temperature of the water in the cloth can drop to a lower temperature than the water in the bucket.
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