Chemistry: Molecular Approach (4th Edition)

Published by Pearson
ISBN 10: 0134112830
ISBN 13: 978-0-13411-283-1

Chapter 11 - Section 11.3 - Intermolecular Forces: The Forces that Hold Condensed Phases Together - Conceptual Connection - Page 498: 11.4

Answer

$CH_3OH$ has the highest boiling point.

Work Step by Step

The dispersion forces are similar in all three compounds because they all have nearly similar molar masses. However, in $CH_3OH$, a $H$ is directly bonded to $O$, so it has hydrogen bonding. Hydrogen bonding is the strongest inter-molecular force, and it takes a lot of energy to break. So, $CH_3OH$ has the highest boiling point.
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