Chemistry 5070 · O Level · Exothermic and endothermic reactions

Exothermic and endothermic reactions — practice question

The diagram illustrates the energy profile for a chemical reaction. Which row is right?

  • Aendothermic: backward reaction; greater activation energy: backward reaction
  • Bendothermic: backward reaction; greater activation energy: forward reaction
  • Cendothermic: forward reaction; greater activation energy: backward reaction
  • Dendothermic: forward reaction; greater activation energy: forward reaction

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