A mixture of N2, H2 and NH3 is at equilibrium according to the equation N2(g) + 3H2(g)

Question:

A mixture of N2, H2 and NH3 is at equilibrium according to the equation N2(g) + 3H2(g) ‡Œ 2NH3(g) as depicted below.

The volume is suddenly decreased (by increasing the external pressure), and a new equilibrium is established as depicted below.

A mixture of N2, H2 and NH3 is at equilibrium

a. If the volume of the final equilibrium mixture is 1.00 L, determine the value of the equilibrium constant K for the reaction. Assume temperature is constant.
b. Determine the volume of the initial equilibrium mixture assuming a final equilibrium volume of 1.00 L and assuming a constant temperature.