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_________________?

Hydrogen is not present in the fuel

Pure oxygen has been used for combustion

Nitrogen percentage in the fuel is very high

Excess air has been used for combustion

Volumetric composition of flue gas analysed with the Orsat apparatus i

1.	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_________________?
A.	Pure oxygen has been used for combustion
B.	Nitrogen percentage in the fuel is very high
C.	Excess air has been used for combustion
D.	Hydrogen is not present in the fuel
Answer» D. Hydrogen is not present in the fuel

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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_________________?

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