Suppose we let the reaction below come to equilibrium. Then we decrease the total pressure, by increasing the volume of the container. What will be the effect on the net amount of SO3(g) present?
2SO2(g) + O2(g) 2SO3(g)
a. It increases.
b. It decreases.
c. It does not change.
d. The question cannot be answered without knowing the value of K.
e. The question cannot be answered without knowing the value of ΔH0.
Answer: b. It decreases.