N2 (g) + 3H2 (g) ⇌ 2NH3 (g) ΔΗ = -92 kJ mol-1

(exothermic)

During this reaction, compromises are made to speed up and

maximise the production of ammonia.

i) Suggest why a moderate amount of pressure of around 200

atmospheres is used.

ii) Suggest why a moderate temperature of around 400oC is

used.​