Chemistry: A Molecular Approach (3rd Edition)

Published by Prentice Hall
ISBN 10: 0321809246
ISBN 13: 978-0-32180-924-7

Chapter 11 - Sections 11.1-11.13 - Exercises - Problems by Topic: 57a

Answer

Br$_2$ has higher vapor pressure.

Work Step by Step

Br$_2$ is smaller and has weaker dispersion forces than I$_2$. Since vapor pressure and IMFs are inversely correlated, it has a higher vapor pressure.
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