Chapter 17, Problem 17.92SP

Use the data in Appendix B to calculate $\Delta$ H° and $\Delta$ S° for each of the following reactions. From the values of $\Delta$ H° and $\Delta$ S°, calculate $\Delta$ G° at 25°C and predict whether each reaction is spontaneous under standard-state conditions.

(a) ${\text{N}}_2\left(\text{g}\right)+{\text{ 2 O}}_{\text{2}}\left(\text{g}\right)\stackrel{}{\to }{\text{ 2 NO}}_{\text{2}}\left(\text{g}\right)$

(b) ${\text{2 KClO}}_{\text{3}}\left(\text{s}\right)\stackrel{}{\to }\text{ 2 KCl}\left(\text{s}\right)+{\text{ 3 O}}_{\text{2}}^{}\left(\text{g}\right)$

(c) ${\text{CH}}_{\text{3}}{\text{CH}}_{\text{2}}\text{OH}\left(l\right)+\text{O2}\left(\text{g}\right)\stackrel{}{\to }{\text{CH}}_{\text{3}}{\text{CO}}_{\text{2}}\text{H}\left(l\right)+{\text{ H}}_{\text{2}}0\left(l\right)$