Answer to Question #331663 in Chemistry for Loraine

Question

At 200 °C, the concentrations of nitrogen, hydrogen, and ammonia at equilibrium are

measured and found to be [N2] = 2.12 M, [H2] = 1.75 M, and [NH3] = 84.3 M. Calculate

the equilibrium constant at the temperature given.

Answer 1

N₂ + 3H₂ = 2NH₃

k = [NH₃]² / ([N₂] x [H₂]³) = 84.3² / (2.12 x 1.75³) = 625.5