A-LevelChemistryChemical energetics9701/12 · Oct/Nov 2015 · Q101 Mark
The decomposition reaction SF6(g) → SF4(g) + F2(g) can be described by the reaction pathway diagram shown. [Figure showing energy profile with X and Y] What are the values of ∆H° and Ea for this reaction?
This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.
AΔH°: X, Ea: X+Y
BΔH°: X, Ea: Y
CΔH°: X-Y, Ea: X
DΔH°: Y-X, Ea: X
✓ Correct answer
C: ΔH°: X-Y, Ea: X
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