Chapter 13, Problem 84CP

Indicate how each of the following will affect the equilibrium concentration of ${\text{NH}}_3$ in the following reaction: $(13.3,13.5)$
$4{\text{NH}}_3(g)+5{\text{O}}_2(g)\rightleftarrows 4\text{NO}(g)+6{\text{H}}_2\text{O}(g)+906\text{kJ}$
a. adding more ${\text{O}}_2(g)$
b. increasing the temperature
c. increasing the volume of the container
d. adding more $\text{NO}(g)$
e. removing some ${\text{H}}_2\text{O}(g)$