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Chemistry · Oct / Nov 2022 · Paper 12 · Question 19

5070Exothermic and endothermic reactions

Nitrogen oxides may form in the atmosphere during lightning activity. N2 + O2 → 2NO The reaction is endothermic. Which energy profile diagram is correct for this reaction?

  1. Aenergy profile diagram A
  2. Benergy profile diagram B
  3. Cenergy profile diagram C
  4. Denergy profile diagram D

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Correct answer: D. energy profile diagram D

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