Professor runs the reaction in problem 4 and allows it to reach equilibrium at T= 740 K. He then finds the equilibrium concentrations of N₂ and H₂ to be N21 = 0.90 M and H₂l=1.0 M. Given that K. 10, what is the equilibrium concentration of NH₃ in Professor Sanov's experiment?
(A) 0.03
(B) 0.10
(C) 0.30
(D) 0.40
(E) 1.0