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 205: 5.28b


This would lead to a positive $\Delta E$.

Work Step by Step

$\Delta E = q + w$ While the heat of the system has remained constant, work has been exerted on the system to move the spheres from distance $r_{1}$ to $r_{2}$. This means that w has a positive coefficient, and thus, $\Delta E$ is positive.
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