Chemistry: The Molecular Science (5th Edition)

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: 20b


The answer is below.

Work Step by Step

The bar is what is being studied, so we called this the system. Technically, the whole rest of the universe is the surroundings. However, the book wanted a specific choice, so we choose the place where most of the heat is going--the mold--to be the surroundings.
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.