Question

Explain the preparation of ammonia using hydrogen.

Answer 1

1. Haber's process is the reaction of hydrogen (H₂) with nitrogen (N₂) to form ammonia (NH₃).
2. For the reaction to occur, high temperature (450⁰C) and high pressure (200 atm) conditions are required.
3. The presence of iron (Fe) as a catalyst speed up the reaction.
4. Molybdenum is used as a promoter in this reaction.
5. The reaction is as follows:

$\underset{\mathrm{Hydrogen}}{3{\mathrm{H}}_2\left(\mathrm{g}\right)}+\underset{\mathrm{Nitrogen}}{{\mathrm{N}}_2\left(\mathrm{g}\right)}\underset{200\mathrm{atm}}{\overset{{450}^0\mathrm{C}}{\to }}\underset{\mathrm{Ammonia}}{2{\mathrm{NH}}_3\left(\mathrm{g}\right)}$