In the Haber's process, for manufacturing ammonia, the reaction N 2( g )+3 H 2( g ) leftharpoons 2 NH 3( g ) is performed at 200 atm pressure in the presence of a catalyst and at a temperature of 500° C. This is considered as optimum temperature for the process because

Question

In the Haber's process, for manufacturing ammonia, the reaction N 2( g )+3 H 2( g ) leftharpoons 2 NH 3( g ) is performed at 200 atm pressure in the presence of a catalyst and at a temperature of 500° C. This is considered as optimum temperature for the process because (A) the yield is maximum at this temperature (B) catalyst is active only at this temperature (C) the energy needed for the reaction is easily obtained only at this temperature (D) the rate of catalytic reaction is fast enough and the yield is also appreciable for this exothermic reaction at this temperature

Tardigrade Admin · Accepted Answer

The optimum conditions of a reaction are ascertained by Le Chatelier's principle. An exothermic reaction when performed at a moderately low temperature will move in a direction so as to undo the effect and will lead to more product formation. Moreover, a catalyst only enhances the speed of the reaction. It does not increase the product.

Q. In the Haber's process, for manufacturing ammonia, the reaction N2​(g)+3H2​(g)⇌2NH3​(g) is performed at 200atm pressure in the presence of a catalyst and at a temperature of 500∘C. This is considered as optimum temperature for the process because

the yield is maximum at this temperature

catalyst is active only at this temperature

the energy needed for the reaction is easily obtained only at this temperature

the rate of catalytic reaction is fast enough and the yield is also appreciable for this exothermic reaction at this temperature

Q. In the Haber's process, for manufacturing ammonia, the reaction $N_{2} (g) + 3 H_{2} (g) ⇌ 2 N H_{3} (g)$ is performed at $200 a t m$ pressure in the presence of a catalyst and at a temperature of $50 0^{\circ} C$ . This is considered as optimum temperature for the process because