Chemistry (4th Edition)

Published by McGraw-Hill Publishing Company
ISBN 10: 0078021529
ISBN 13: 978-0-07802-152-7

Chapter 5 - Section 5.4 - Calorimetry - Checkpoint - Page 209: 5.4.1


b) 6.95 kJ/°C

Work Step by Step

As the reaction gives off heat, $q_{rxn}$ is negative. Heat capacity of the calorimeter $C_{cal}= \frac{q_{cal}}{\Delta T}=\frac{-q_{rxn}}{\Delta T}=\frac{-(-26.42\,kJ)}{(27.20-23.40)^{\circ}C}$ $=6.95\,kJ/^{\circ}C$
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