Compare the stoichiometric air/fule ratios (AFR) for complete combustion of Benzene (C6 H6), Octane (C8 H8), and Ethanol (C2 H5 OH) in air (O2 + 3.76 N2). The only products should be CO2, H2O and N2.
Calculate both volumetric (molar) and mass AFR ( you will need to look up the molar masses).
Why is the lowest of the 3 the lowest?
Calculate and compare the CO2 emitted per MJ produced by complete combustion of the 3 fules. Assume heat content (MJ/kg) of:
benzen is 40.17
Octane is 44.43
Ethanol is 28.87