Conceptual Physics (12th Edition)

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

Chapter 15 - Think and Discuss: 97

Answer

Yes, in theory, the temperature is slightly higher at the bottom.

Work Step by Step

At the top, the water has more PE than at the bottom. Ultimately, this PE is transformed to KE, which heats up the rocks below and the water itself when the falling water hits the bottom. In real life, this temperature change is too small to measure amongst the noise of other effects, including evaporative cooling.
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