Question

Equilibrium constant, K_c for the reaction at 

        500 K is 0.061. 

At a particular time, the analysis shows that composition of the reaction mixture is 3.0 mol L ^–1 N₂, 2.0 mol L^–1 H₂ and 0.5 mol L^–1 NH₃. Is the reaction at equilibrium? If not in which direction does the reaction tend to proceed to reach equilibrium? 

Answer 1

The given reaction is: 

Now, we know that, , 

Since    Qc ≠  Kc  the reaction is not at equilibrium. ,

Since    Qc < Kc  the reaction will proceed in the forward direction to reach equilibrium.