Conceptual Physics (12th Edition)

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

Chapter 19 - Think and Discuss: 90

Answer

The speed of sound in air is much larger than the effective speed at which molecules diffuse through air.

Work Step by Step

That explains why the sound of gas escaping from a tap can be heard long before the gas molecules migrate over to the listener.
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.