Question

In the manufacture of Ammonia by Haber's process, the condition which would give maximum yield is: $N_2+3H_2\rightleftharpoons 2N{H}_3+Qkcal$.

• A. High temperature, high pressure and high concentrations of the reactants
• B. High temperature, low pressure and low concentrations of the reactants
• C. Low temperature and high pressure
• D. Low temperature, low pressure and low concentration of $H_2$

Answer 1

The correct option is C Low temperature and high pressure

$N_2+3H_2\rightleftharpoons 2N{H}_3+QKcal$

(i) since process of making ammonia is exothermic process low temperature is favourable

(ii) No. of mole of gase is reactant side is more than product side so high pressure is favourable in production of Ammonia

According to above two condition low temp and high pressure is favourable

$\Rightarrow$ Option C is correct.