The following are approximate values of the relative molecular mass (molecular weights): oxygen O,, 32; nitrogen N, ,28; hydrogen Hz, 2; carbon C, 12. Determine the stoichiometric fuel lair and air...

The following are approximate values of the relative molecular mass (molecular weights): oxygen O,, 32; nitrogen N, ,28; hydrogen Hz, 2; carbon C, 12. Determine the stoichiometric fuel lair and air fuel ratios on a mass basis, and the lower heating value per unit mass of stoichiometric mixture for the following fuels:

Methane (CH₄), isooctane (C₈H₁₈), benzene (C₆H₆), hydrogen (H,), methyl alcohol (CH₃OH) Heating values for these fuels are given in App. D