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The system should be the bar, for this is what we are studying. The surroundings is where most of the heat goes; this is the mold.
Chemistry: The Molecular Science (5th Edition)
by Moore, John W.; Stanitski, Conrad L.
Published by
Cengage Learning
ISBN 10:
1285199049
ISBN 13:
978-1-28519-904-7
Chapter 4 - Energy and Chemical Reactions - Questions for Review and Thought - Topical Questions - Page 189b: 20a
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