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Problem \#1-the only problem (100 points) A combustion chamber is used to burn a fuel mixture consisting of methane ( CH4 ) and ethane ( C2H6 ). Dry air (contains no water) also enters the chamber. Excess air is used. Assume the air to be 21.0 mole\% O2 and the balance N2. Flue gas exits the combustion chamber. The flue gas has the following composition in mole percent: 1.79%CO,7.34%CO2,15.48%H2O,3.22%O2 and the balance N2 What is the mole percent of ethane in the fuel mixture? Be sure to draw and label a process flow diagram, including the knowns and unknowns. Assume as a basis that 100 moles per hour of flue gas (the exit gas from combustion) exit the combustion chamber. Hint: First, write down the stoichiometric equations for complete combustion of methane and ethane. Also: focus on the question asked