$S{O}_3(g)S{O}_2(g)+\frac{1}{2}{O}_2(g),$ Endothermic

Explain the effect of each:

a$)S{O}_3(g)$ is added without changing $V$ or $T$

b$)$ Mixture is expanded at constant $T$

c$)$ Mixture is heated

d$)$ An inert gas is pumped into the equilibrium mixture $($while $P$ & $T$ are const.$)$

e$)$ An inert gas is pumped into the equilibrium mixture without changing the volume