The equilibrium constant expression for the reaction: CS2(g) + 4H2(g) ↔ CH4(g) + 2H2S(g) is: Group of answer choices Kc = [CS2] 4[H2] / [CH4] 2[H2S] Kc = [CH4] 2[H2S] / [CS2] 4[H2] Kc = [CH4] [H2S]2 / [CS2] [H2]4 Kc = [CH4] [H2S] / [CS2] [H2] Kc = [CS2] [H2] / [CH4] [H2S] Kc = [CS2] [H2]4 / [CH4] [H2S]2