Question

Calculate the value of the equilibrium constant for the reaction, 4NH3(g)+3O2(g)⇌2N2(g)+6H2O(g) given the following equilibrium constants at a certain temperature.

2H2(g)+O2(g)⇌2H2O(g) Kc=3.2×1082 N2(g)+3H2(g)⇌2NH3(g) Kc=3.5×107