Consider the following reaction: C(s) + H2O(g) ⇄ CO(g) + H2(g) KC = 0.02 at 1000 °C Calculate the concentration of CO in an equilibrium mixture (in mol/L) if a reaction mixture initially contains only reactants, and the equilibrium concentration of H2O(g) is [H2O] = 0.500 M at 1000 °C.