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A coal has the following elemental analysis by weight: 78.4% carbon, 5.2% oxygen, 4.8% hydrogen, 1.4%...

A coal has the following elemental analysis by weight: 78.4% carbon, 5.2% oxygen, 4.8% hydrogen, 1.4% nitrogen, 0.8% sulfur, and 9.4% ash. It is combusted with 25% excess air and the combustion is complete, CO2, H2O, and SO2 are formed due to combustion. The nitrogen from the air and the fuel does not undergo a reaction and leaves as N2 gas. Calculate the amount of air required to combust 100 grams of coal. Calculate also the amount of the gases produced to combust 100 grams of coal.

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