Chemistry 10th Edition

Published by Brooks/Cole Publishing Co.
ISBN 10: 1133610668
ISBN 13: 978-1-13361-066-3

Chapter 15 - Chemical Thermodynamics - Exercises - Enthalpy and Changes in Enthalpy: 14

Answer

(i). (a) increase. (b) $H_{Products}\gt H_{Reactants}$ (c) $\Delta$H is positive. (ii) (a) decrease. (b) $H_{Reactants}\gt H_{Products}$ (c) $\Delta$H is negative.

Work Step by Step

Heat is absorbed in endothermic reactions and it is released in exothermic reactions. The above answers are based on this fact.
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.