Chemistry: Atoms First (2nd Edition)

Published by Cengage Learning
ISBN 10: 1305079248
ISBN 13: 978-1-30507-924-3

Chapter 7 - Exercises - Page 318b: 29


16 kJ

Work Step by Step

∆E = q+w where q is the heat and w is the work. As heat is absorbed q is positive and is equal to 45 kJ. But work is done by the system. So it is negative and the value of w is equal to -29 kJ. Then, ∆E= 45 kJ-29 kJ = 16 kJ
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