Consider the following equilibrium process at 686°C:
CO2(g) + H2(g) ⇌ CO(g) + H2O(g)
The equilibrium concentrations of the reacting species are [CO] = 0.0560 M, [H2] = 0.0410 M, [CO2] = 0.0880 M, and [H2O] = 0.0360 M.
(a) Calculate Kc for the reaction at 686°C.
(b) If we add CO2 to increase its concentration to 0.510 mol / L, what will the concentrations of all the gases be when equilibrium is reestablished?