Suppose the reaction system UO2(s) + 4HF(g) ⇌ UF4(g) + 2H2O(g) has already reached equilibrium. Predict the effect that each of the following changes will have on the equilibrium position. Tell whether the equilibrium will shift to the right, will shift to the left, or will not be affected.
a. More UO2(s) is added to the system.
b. The reaction is performed in a glass reaction vessel; HF(g) attacks and reacts with glass.
c. Water vapor is removed.