Chemistry 12th Edition

Published by McGraw-Hill Education
ISBN 10: 0078021510
ISBN 13: 978-0-07802-151-0

Chapter 17 - Entropy, Free Energy, and Equilibrium - Questions & Problems - Page 806: 17.49

Answer

Please see the work below.

Work Step by Step

We know that $HF$ is strongly hydrogen bonded in the gaseous state, and that's why its $\Delta S_{vap}$ is less than other substances.
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