Chemistry 9th Edition

Published by Cengage Learning
ISBN 10: 1133611095
ISBN 13: 978-1-13361-109-7

Chapter 6 - Thermochemistry - Questions: 15

Answer

a. $-445.5 \text{ kJ}$ b. $-445.5 \text{ kJ}$

Work Step by Step

a. The reaction shows that for every two moles of $H_2O$, -891 kJ of energy is released. Therefore, for every mole $H_2O$, $\frac{-891}{2}=-445.5$ kJ is released. b. The reaction shows that for every two moles of $O_2$ consumed, $-891$ kJ is released. Therefore, for every mole of $O_2$, $\frac{-891}{2}=-445.5$ kJ is released.
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