A-LevelChemistryChemical energetics9701/12 · May/June 2013 · Q121 Mark
Propanone has molecular formula C₃H₆O. The enthalpy change of combustion of hydrogen is –286 kJ mol⁻¹. The enthalpy change of combustion of carbon is –394 kJ mol⁻¹. The enthalpy change of formation of propanone is –254 kJ mol⁻¹. Using this information, what is the enthalpy change of combustion of propanone?
A-2644 kJ mol⁻¹
B-2294 kJ mol⁻¹
C-1786 kJ mol⁻¹
D-426 kJ mol⁻¹
✓ Correct answer
C: -1786 kJ mol⁻¹
Practise more questions on this topic
Oracle Prep sorts past-paper questions by topic, so you can drill Chemical energetics and see which topics are most likely to come up next.
Sign up free →