Chapter 16, Problem 64QRT

Some metal oxides, such as lead(II) oxide, can be decomposed to the metal and oxygen simply by heating.

$\text{PbO(s) }\to \text{ Pb(s) + }\frac{1}{2}{\text{O}}_{\text{2}}\text{(g)}$

1. (a) Is the decomposition of lead(II) oxide product-favored at 25 °C? Explain.
2. (b) If not, can it become so if the temperature is raised?
3. (c) As the temperature increases, at what temperature does the reaction first become product-favored?