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 - Page 287: 38

Answer

Positive.

Work Step by Step

Because the system absorbs energy, the internal energy of the system increases and the change in internal energy of the system $\Delta E_{sys}$ is positive. As the surroundings release energy, the internal energy of the surroundings decreases and the change in internal energy of surroundings $\Delta E_{surroundings}$ is negative.
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