Question: Example -2 A fuel gas containing 95% methane (by volume) and 5% N2 (by volume) is burnt in a boiler furnace with 150% excess air.

Example -2 A fuel gas containing 95% methane (by volume) and 5% N2 (by volume) is burnt in a boiler furnace with 150% excess air. 86% of the methane goes to formation of CO2, 10% to CO and 4% remains unburnt. Calculate the composition of stack gas

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