Conceptual Physics (12th Edition)

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

Chapter 14 - Think and Explain - Page 279-281: 48


Gas does "fill all the space available to it" - for example, it is unlikely that air in your room will suddenly flow over to only be in the left half. However, if the average speed of the molecules in Earth's atmosphere is below the escape speed needed to escape Earth's gravity, those molecules are trapped.

Work Step by Step

This is discussed on page 265.
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.