Asked in PMC Practice Test 33 (2021) 2021Moderate

Manufacturing of Ammonia by Haber's process is an:

Correct answer: B. Exothermic reaction

  • A. Endothermic reaction
  • B. Exothermic reaction
  • C. Irreversible
  • D. Slow

Explanation

In the Haber process, "the atmospheric nitrogen (N2) is converted to ammonia (NH3) by reacting it with hydrogen (H2)". Here a metal catalyst is used and high temperatures and pressures are maintained. The reaction is reversible and the production of ammonia is exothermic.

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About Haber's Process

Haber's process produces ammonia by reacting nitrogen with hydrogen in a reversible, exothermic equilibrium. The topic covers the iron catalyst, operating temperature and pressure, Le Chatelier's principle, the compromise between reaction rate and equilibrium yield, and the removal and recycling of ammonia and unreacted gases.

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