Answer
This is an exothermic reaction.
Work Step by Step
The heat is represented by "157 kJ" in the $products$ side. Therefore, the equation indicates the release of energy in the form of heat, which is characteristic of exothermic reactions.
Chemistry: An Introduction to General, Organic, and Biological Chemistry (12th Edition)
by Timberlake, Karen C.
Published by
Prentice Hall
ISBN 10:
0321908449
ISBN 13:
978-0-32190-844-5
Chapter 7 - Section 7.8 - Energy in Chemical Reactions - Additional Questions and Problems - Page 250: 7.101a
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