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Q/A coal sample has 90% carbon, 3.3% hydrogen, 3% oxygen, 0.8% nitrogen. 0.9% sulphur and 2%...

Q/A coal sample has 90% carbon, 3.3% hydrogen, 3% oxygen, 0.8% nitrogen. 0.9% sulphur and 2% ash. For 50% excess air supply determine percentage composition of dry flue gases by volume and minimum oxygen required.

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