Chemistry: The Central Science (13th Edition)

Published by Prentice Hall
ISBN 10: 0321910419
ISBN 13: 978-0-32191-041-7

Chapter 5 - Thermochemistry - Exercises - Page 207: 5.69b


$S(s) + \frac{3}{2}O_2(g) --> SO_3(g)$ $\Delta H ^o _f (SO_3(g))= -395.2 kJ/mol$

Work Step by Step

1. Write the unbalanced equation: $S(s) + O_2(g) --> SO_3(g)$ 2. Balance it: $S(s) + \frac{3}{2}O_2(g) --> SO_3(g)$ 3. The $\Delta H^o$ values can be founded in the book's final pages. $\Delta H ^o _f (SO_3(g))= -395.2 kJ/mol$
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