Manufacture of ammonia from the elements is represented as,
N2 + 3H2 ⇌ 2NH3 + 22.4 k cals. The maximum yield of ammonia will be obtained when the process is made to take place:
At high pressure and low temperature
Le Chatelier’s principle” A change in any of the factors that determine the equilibrium conditions of a system will cause the system to change in such a manner so as to reduce or to counteract the effect of the change.”