Chemistry: A Molecular Approach (3rd Edition)

Published by Prentice Hall
ISBN 10: 0321809246
ISBN 13: 978-0-32180-924-7

Chapter 6 - Sections 6.1-6.10 - Exercises - Problems by Topic: 41

Answer

$-622 kJ$$-$$105 kJ$$=-727 kJ$

Work Step by Step

$622$$kJ$ are released by the system and $105$$kJ$ of work are done by the system on the surroundings. Both indicate a loss of energy by the system, which makes them negative.
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