Answer
Please see the work below.
Work Step by Step
We know that the thermochemical equation is
$2SO_2(g)+O_2(g)\rightarrow 2SO_3(g)\space \Delta H=-198KJ$
General Chemistry 10th Edition
by Ebbing, Darrell; Gammon, Steven D.
Published by
Cengage Learning
ISBN 10:
1-28505-137-8
ISBN 13:
978-1-28505-137-6
Chapter 6 - Thermochemistry - Questions and Problems - Page 266: 6.136
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