Chapter 8, Problem 43P

Complete the following table by adding + and - signs to the $\text{ΔH°}$ and $\text{ΔS°}$ columns so as to correspond to the effect of temperature on a reversible reaction.

$\begin{array}{lll}\hfill & \text{Sign}\text{of}\hfill & \hfill \\ \text{Reaction}\text{is}\hfill & {\text{ΔH}}^{\text{o}}\hfill & {\text{ΔS}}^{\text{o}}\hfill \\ \text{Exergonic}\text{at}\text{all}\text{temperatures}\hfill & \hfill & \hfill \\ \text{b)}\text{Exergonic}\text{at}\text{low}\text{temperature;}\text{endergonic}\text{at}\text{high}\text{temperature}\hfill & \hfill & \hfill \\ \text{c)}\text{endergonic}\text{at}\text{all}\text{temperatures}\hfill & \hfill & \hfill \\ \text{d)}\text{endergonic}\text{at}\text{low}\text{temperature;}\text{exergonic}\text{at}\text{high}\text{temperature}\hfill & \hfill & \hfill \end{array}$