Which reaction profile has an arrow correctly showing the enthalpy change (ΔH\Delta HΔH) for an endothermic reaction?

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Practise OCR GCSE Chemistry Energetics with exam-style questions for Foundation and Higher tier. 30 questions, matched to the OCR GCSE Chemistry (J248) specification and written in Paper 1 and Paper 2 (Foundation Tier) or Paper 3 and Paper 4 (Higher Tier) style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.