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Chemical Engineering - Fuels and Combustion - Discussion

Discussion Forum : Fuels and Combustion - Section 9 (Q.No. 16)
Fuels and Combustion
16.
A carbonaceous fuel (containing no H2 or hydrocarbons) is burnt and the resulting flue gas contains 21% CO2. It means that
21% excess air has been used for combustion.
21% excess oxygen has been used for combustion.
complete combustion of fuel has taken place.
no excess air has been used for combustion.
Answer: Option
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