(d) Volumetric analysis of a gaseous fuel is 25%CH4,45%H2,3%CO2,10%CO,,1%O2, 1%C2H2 and 15%N2. Calculate the stoichiometric air-fuel ratio (m3/m2). The dry combustion products contained by volume are 7.11%CO2 and 0.3% CO. Calculate the air-fuel ratio of excess air used and percentage excess O2 in the dry product. Also determine the theoretical dew point. Table B. 1: Properties of Safurated Water, Presented at Regular Intervals of Temperature