Which is the correct equilibrium constant expression for the following reaction? Fe2O3(s)+3H2(g)2Fe(s)+3H2O(g) a) Kc=[H2O]3/[H2]3 b) Kc=[Fe][H2O]/[Fe2O3][H2] c) Kc=[Fe]2[H2O]3/[Fe2O3][H2]3 d) Kc=[Fe2O3][H2]3/[Fe]2[H2O]3 e) Kc=[H2]/[H2O]