Chemistry and Chemical Reactivity (9th Edition)

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



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.
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