Question

R= 0.08206 L.atm/mol.K
R = 8.314 J/mol.K
Kp = Kc (RT)?n


1. For the reaction N2 (g) + 3H2 (g) ?? 2NH3 (g) write:
a) An expression for the equilibrium constant (Kc ) of the forwardreaction:




b) An expression for the equilibrium constant (Kc )of the reverse(backward) reaction:




c) An expression for the Kp of the gases of the forwardreaction:




d) The equilibrium constant for N2 (g) + 3H2 (g) ?? 2NH3 (g) is Kc= 655 @ 250 C.
Calculate Kc for the followings:

2NH3 ?? N2 (g) + 3H2 (g) Kc ?






NH3 ?? 1/2N2 + 3/2H2 Kc ?