4569Chemical EngineeringMedium
Volumetric composition of flue gas analysed with the Orsat apparatus is : CO2 = 12%, O2 = 8%, CO = nil, N2 = 80%. This flue gas composition indicates that________?
AHydrogen is not present in the fuel
BNitrogen percentage in the fuel is very high
CPure oxygen has been used for combustion
DExcess air has been used for combustion
Correct answer
D. Excess air has been used for combustion
Explanation
The correct answer is Excess air has been used for combustion.