Methane gas can be produced in a laboratory with the following reaction: CS2(g) + 4 H2(g) CH4(g) + 2 H2S(g) Initially, at a temperature of 90 C, 0.18 mol/L CS2(g) and 0.31 mol/L H2(g) are present in a closed container. When equilibrium is established, 0.13 mol/L CS2(g) is present.

Calculate the Kc for the reaction. Indicate whether products or reactants are favored.