52. On the basis of Le-Chatelier principle explain how temperature and pressure can be adjusted to increase the yield of ammonia in the following reaction.

N2(g)+3H2(g)2NH3(g); H=-92.38 kJ mol-1

What will be the effect of addition of argon to the above reaction mixture at constant volume?

Prediction of the following stages of a reaction by comparing the value of Kc and Qc are
(i) If Qc<Kc, the reaction will proceed in the direction of the products (forward reaction).
(ii) If Qc>Kc, the reaction will proceed in the direction of reactants (reverse reaction).
(iii) If Qc=Kc, the reaction mixture is already at equilibrium.