General Chemistry 10th Edition

Published by Cengage Learning
ISBN 10: 1-28505-137-8
ISBN 13: 978-1-28505-137-6

Chapter 18 - Thermodynamics and Equilibrium - Questions and Problems - Page 773: 18.75

Answer

Please see the work below.

Work Step by Step

We know that $\Delta S$ is negative as there is a decrease in the moles of gas $(\Delta n_{gas}=-2)$ from three moles of gaseous reactant forms one mole of product and a liquid product additionally.
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