Answer
B
Work Step by Step
A bigger amount of the warmer water means that the equilibrium temperature will be closer to $30^{\circ}C$ than $20^{\circ}C$.
The reverse is true for C, and A would have the average temperature as the equilibrium.
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 - 5-2 Specific Heat Capacity: Heating and Cooling - Review & Check for Section 5-2 - Page 189: 2
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