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.