Answer
B
Work Step by Step
Since the temperature decreases, energy transfer to the cup will increase its temperature, making the measured enthalpy change smaller than the actual value.
Chemistry and Chemical Reactivity (9th Edition)
by Kotz, John C.; Treichel, Paul M.; Townsend, John R.; Treichel, David A.
Published by
Cengage Learning
ISBN 10:
1133949649
ISBN 13:
978-1-13394-964-0
Chapter 5 Principles of Chemical Reactivity: Energy and Chemical Reactions - 5-6 Calorimetry - Review & Check for Section 5-6 - Page 205: 2
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