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Natural gas containing 85% methane, 3% ethane, 3% benzene, 5% hydrogen and the rest water vapor is burnt with 20% excess air. Air contains 1.5%

Natural gas containing 85% methane, 3% ethane, 3% benzene, 5% hydrogen and the rest water vapor is burnt with 20% excess air. Air contains 1.5% moist. a. Calculate the amount of air required for the combustion of natural gas (100 kmol) b. Calculate the composition of dry flue gas produced (kmol and vol%), assuming 100% complete combustion"

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