9
QuizMultiple Choice
Thermochemical Equations
Question 9 of 10 • *25-26 KCS18 Chemistry IC
Butane C4 H10 (g),(Hf = –125.6), combusts in the presence of oxygen to form CO2 (g) (Hf = –393.5 kJ/mol), and H2 O(g) (Hf = –241.82) in the reaction: What is the enthalpy of combustion, per mole, of butane? Use .
Answer
A
–5,315 kJ/molB
–2,657.5 kJ/molC
2,657.4 kJ/molD
5,314.8 kJ/mol