University Physics with Modern Physics (14th Edition)

Published by Pearson
ISBN 10: 0321973615
ISBN 13: 978-0-32197-361-0

Chapter 19 - The First Law of Thermodynamics - Problems - Discussion Questions - Page 638: Q19.2


See explanation.

Work Step by Step

Heat transfer is a way for bodies to exchange energy. The internal energy of the hotter body falls while the internal energy of the cooler body rises. The amount of heat transfer depends not only on the initial and final states, but on the path taken, which is why we cannot consistently define the amount of heat contained in a body. The amount of internal energy is well-defined, and the systems possess that.
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