Ammonia synthesis reaction is______________________?
Correct answer: A. Exothermic
- A. Exothermic
- B. Endothermic
- C. Autocatalytic
- D. None of these
Explanation
The Haber reaction, N2 + 3H2 ⇌ 2NH3, releases heat, so ammonia synthesis is exothermic. Lower temperature favours equilibrium conversion, while higher temperature is used to obtain a practical reaction rate.
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