The yearly production of ammonia is of the order of 1.3 Gt (1 Gt = 10⁹ t), making this commodity one of the top ten chemicals produced globally. If you were studying the synthesis of ammonia, you would need to work with the equilibrium constant for the reaction. Write the equilibrium constant for the ammonia synthesis reaction, reaction C.

PLAN Write the equilibrium constant with the partial pressure of the product in the numerator, raised to a power equal to its stoichiometric coefficient in the balanced equation. Do the same for the reactants, but place their partial pressures in the denominator.