Chemistry: The Central Science (13th Edition)

Published by Prentice Hall
ISBN 10: 0321910419
ISBN 13: 978-0-32191-041-7

Chapter 13 - Properties of Solutions - Exercises - Page 567: 13.20


$\Delta$ $H_{mix}$ is the largest negative number.

Work Step by Step

$\Delta$ $H_{mix}$ has to overcome the positive values of $\Delta$ $H_{solute}$ and $\Delta$ $H_{solvent}$ to make the overall reaction exothermic (we know it's exothermic because $\Delta$ $H_{soln}$ = -37kJ/mol) so $\Delta$ $H_{mix}$ must be the largest negative number.
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