The ammonia synthesis reaction represented by N2 + 3H2 ⇌ 2NH3; ΔH = - 22.4 kcal, is__________________?
Correct answer: B. Exothermic
- A. Endothermic
- B. Exothermic
- C. Isothermal
- D. Adiabatic
Explanation
A negative enthalpy change means heat is released by the reaction, so ammonia synthesis is exothermic. An endothermic reaction would have a positive ΔH.
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