Conceptual Physics (12th Edition)

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

Chapter 17 - Think and Explain: 99

Answer

This is a writing exercise for the student, and answers will vary.

Work Step by Step

Sample question: When a gram of water evaporates, the process absorbs energy. When a gram of water vapor condenses, the process releases energy. Which amount of energy is greater? Answer: the processes are the reverse of each other, and the amount of energy is the same, 540 calories per gram of water. This is discussed on pages 328-330.
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