Conceptual Physics (12th Edition)

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

Chapter 16 - Reading Check Questions (Comprehension) - Page 316: 9

Answer

As the air leaves the balloon, it encounters lower-pressure air, and expands. The temperature drops because it is cooled as it expands further, and the molecular speed decreases.

Work Step by Step

This is discussed on pages 305-306.
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.