A-LevelChemistryChemical energetics9701/12 · Feb/Mar 2022 · Q81 Mark
The equation for reaction 1 is shown. reaction 1 C₆H₁₂O₆ → 2CO₂ + 2C₂H₅OH ΔH/kJ mol⁻¹ C₆H₁₂O₆ a C₂H₅OH b What is the correct expression for the enthalpy change of reaction 1?
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A+ b
B- b
C+ 2b
D- 2b
✓ Correct answer
D: - 2b
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