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The percentage composition by mass of a certain fuel is given as C 90%, H 3.5%,...

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Chemistry

The percentage composition by mass of a certain fuel is given asC 90%, H 3.5%, O 3% and remainder is incombustible. The fuel isburnt in air and the resulting dry analysis gave the followingresult by volume: CO2 12.7%, O2 7%, N2 remainder.

a. Find the mass of air supplied per kilogram of fuel

b. If the fuel is completely burned with air (there is nounburned fuel in the exhaust gas), what is the expression thatdescribes this situation?

c. Determine the percentage excess air.

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