.Iron is used as a catalyst in the synthesis of ammonia by Haber's process, its efficiency is increased by using
Correct answer: D. All of these
- A. Al2O3
- B. Actinium oxide
- C. Cr2O3
- D. All of these
Explanation
Iron is indeed used as a catalyst in the synthesis of ammonia by the Haber process. However, its efficiency can be increased by using promoters such as Al2O3 (aluminum oxide), Actinium oxide, and Cr2O3 (chromium(III) oxide). These promoters help enhance the catalytic activity of iron, leading to higher efficiency in the ammonia synthesis reaction.
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Thermochemistry measures energy changes in chemical reactions and distinguishes exothermic from endothermic processes. Work covers systems, surroundings and state functions, internal energy, the first law of thermodynamics, enthalpy and Hess's law, including the sign conventions used when heat enters or leaves a system.
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