A fossil coal containing 80% C, 8% H2, 2% O2, 1% S, 2% N2, 3% H2O and 4% ash, burns with 60% excess O2. Details: H-1, C-12, N-14, O-16, S-32
MAR = 28.84 g / mol
R = 62.3 mmHg. L / mol / K

Questions:
a) The mass of air fed.
b) The volume of air fed at 27°C and 720 mmHg.
c) The mass of smoke.
d) The volume of fumes on a wet basis, measured at 120 ° C and 720 mmHg.
e) The probable ORSAT analysis of the fumes.
f) The BM by weight of the combustion.