Question
Both ethanol (CH3CH2OH, MM=46.07g/mol) and methanol (CH3OH, MM=32.04g/mol) have been considered as fuels for automobiles. Which is the better fuel, on a per gram basis, when burned with oxygen?
CH3CH2OH(g) DeltaHf(KJ/molrxn) = -235.10
H3OH (g) DeltaHf(KJ/molrxn) = -200.66
H2O (g) DeltaHf(KJ/molrxn) = -241.82
CO2 (g) DeltaHf(KJ/molrxn) = -393.51
CH3CH2OH(g) DeltaHf(KJ/molrxn) = -235.10
H3OH (g) DeltaHf(KJ/molrxn) = -200.66
H2O (g) DeltaHf(KJ/molrxn) = -241.82
CO2 (g) DeltaHf(KJ/molrxn) = -393.51