Chapter 22, Problem 22.44E

Are the following processes examples of homogeneous or heterogeneous catalysis? (a) Hydrolysis of immiscible ethyl acetate $\left(\mathcal{l}\right)$ in an aqueous basic solution. (b) Conversion of ${\text{NO}}_{\text{X}}$ gases to ${\text{N}}_{\text{2}}$ and ${\text{O}}_{\text{2}}$ by platinum metal. (c) Decomposition of atmospheric ozone by $\text{NO}$ gas. (d) Oxidation of ethyl alcohol, ${\text{C}}_{\text{2}}{\text{H}}_{\text{5}}\text{OH}$, by the enzyme alcohol dehydrogenase, ADH, to acetaldehyde in the body. (e) Solid-state conversion of $\text{C}$ (graphite) to $\text{C}$ (diamond) by transition metal additives at high pressure.