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Chemistry

With reference to Haber’s process, write the equation and the conditions required.

Ammonia

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Answer

Nitrogen reacts with hydrogen under specific conditions liberating ammonia

N2 + 3H2 ⇌ 2NH3 + Δ

Conditions :

Temperature : 450-500°C [Optimum temperature]

Pressure : 200 to 900 atmospheres [Optimum pressure]

Catalyst : Finely divided iron [Fe]

Promotor : Molybdenum [Mo]

[Catalyst - iron [III] oxide [Fe2O3] may also be used containing promoters about 1% K2O and 3% Al2O3]

Precautions : Impurities like CO, CO2, and H2S may poison the catalyst hence, the nitrogen-hydrogen reactant mixture must be free from them.

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