JEE Main Chemistry question

Chemistry Equilibrium JEE Main

Favourable conditions for manufacture of ammonia by the reaction N₂ + 3H₂ ⇌ 2NH₃; ΔH = −21.9 kcal are:

(A)Low temperature, low pressure and catalyst
(B)Low temperature, high pressure and catalystCorrect
(C)High temperature, low pressure and catalyst
(D)High temperature, high pressure and catalyst

Answer: (B)

Solution

Exothermic + Δn<0 → low T, high P favour forward reaction; catalyst speeds equilibration.

Question ID VK-136009