Same chapter3 marksDifficulty: Medium
State three tests by which ammonia gas can be identified.
Study of Compounds: Ammonia
3 marksDifficulty: Medium
Describe the Haber process for the manufacture of ammonia, giving the equation and the conditions.
Original Khojo Papers practice question — not from a past board paper.
Answer
N2 + 3H2 ⇌ 2NH3, carried out at about 450–500 °C and about 200 atmospheres pressure over finely divided iron as catalyst, with molybdenum as a promoter.
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
The reaction is reversible and exothermic, so a high pressure and a moderate temperature give a good yield at a workable rate.
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