Question 2 (20) A 100 tons of coal are burned daily. The combustion produces 19 tons of ash. The coal is dry but the air has 3% moisture ( volume basis). The dry gas composition is 13.02% ;3.78% ;80.87% ;0.38% ;1.95% Find the coal composition on a mass basis, C, H, S and ash. How many kmoles of air are used per day?