The enthalpy change for the reaction 2NO₂ → N₂ + O₂ is −114 kJ. What is the enthalpy change for the reaction N₂ + O₂ → 2NO₂?
University of Ilorin CHM101 2026-test past question
- +114 kJ
- −57 kJ
- +57 kJ
- −114 kJ
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