Chemistry and Chemical Reactivity (9th Edition)

Published by Cengage Learning
ISBN 10: 1133949649
ISBN 13: 978-1-13394-964-0

Chapter 10 Gases and Their Properties - 10-6 The Kinetic-Molecular Theory of Gases - Review & Check for Section 10-6: 2

Answer

A

Work Step by Step

Since they are in the same temperature and $\sqrt{\bar{u^2}}=\sqrt{3RT/M}$, the one with lower molecular weight will be the one with the higher velocity.
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