Consider the following equilibrium process at 700 °C: 2H2(g) + S2(g) ? 2H2S(g) Analysis shows that there are 1.8 moles of H2, 7.45e-05 moles of S2, and 7.2 moles of H2S present in a 50.8 L flask at equilibrium. Calculate the equilibrium constant Kc for the reaction.