A-LevelChemistryChemical energetics9701/12 · Oct/Nov 2012 · Q111 Mark
Which process could be used to calculate the bond energy for the covalent bond X-Y by dividing its ΔH by n?
AXYn(g) → X(g) + nY(g)
B2XYn(g) → 2XYn-1(g) + Y2(g)
CY(g) + XYn-1(g) → XYn(g)
DnXY(g) → nX(g) + n/2 Y2(g)
✓ Correct answer
A: XYn(g) → X(g) + nY(g)
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