Ethyl alcohol and hydrogen are being put forward as cleaner alter...

8. Thermochemistry

Enthalpy of Formation

8. Thermochemistry

ANSWERS OPTIONS

H₂ = –141485 kJ/kg; Ethanol = –48239 kJ/kg; Octane = –29674 kJ/kg

H₂ = –141485 kJ/kg; Ethanol = –29674 kJ/kg; Octane = –48239 kJ/kg

H₂ = –29674 kJ/kg; Ethanol = –141485 kJ/kg; Octane = –48239 kJ/kg

H₂ = –48239 kJ/kg; Ethanol = –29674 kJ/kg; Octane = –141485 kJ/kg

Ethyl alcohol and hydrogen are being put forward as cleaner alternatives to traditional fossil fuels. Compare the efficiency of these fuels by calculating the amount of heat of combustion per kg of octane, hydrogen, and ethyl alcohol.