Chapter 12, Problem 25E

Using the relevant S° values listed in Appendix G, calculate $\Delta$ S° for the following changes:

(a) $\text{N2}\left(g\right)\text{+3H2}\left(g\right)\to \text{2NH3}\left(g\right)$

(b) ${\text{N}}_{\text{2}}\left(g\right)+\frac{5}{2}{\text{O}}_2\left(g\right)\to {\text{N}}_{\text{2}}{\text{O}}_{\text{5}}\left(g\right)$