A new synthetic fuel with chemical formula (CH,O), is being developed from coal for automotive use. You are making an evaluation of what changes in the spark ignition engines you produce might be...

A new synthetic fuel with chemical formula (CH,O), is being developed from coal for automotive use. You are making an evaluation of what changes in the spark ignition engines you produce might be required if gasoline is replaced by this fuel " X." First make the following calculations:

(a) What is the stoichiometric airlfuel ratio for "X"? How does this compare with the stoichiometric airjfuel ratio for gasoline?

(b) Given that in a constant-volume calorimeter experiment to determine the heat value of "X" the combustion of 50 g of fuel with excess air at standard con tions resulted in a temperature rise of 1.25"C of the water and calorimeter combined heat capacity 650 kJ/K), what is the heating value of a stoichiometric mixture of "X" and air, per kilogram of mixture? How does this value compare with a stoichiometric gasoline-air mixture?