1.
in order to get maximum calorific value output, a burner should have an optimum fuel to oxygen ratio which corresponds to 3 times as much oxygen as is required theoretically for complete combustion of fuel. A burner which has been adjusted for methane as fuel ( with x litre/hour of CH4 and 6x litre/hour of O2) is to be readjusted for butane, C4H10. in order to get the same calorific output wat shud be the rate of supply of butane and oxygen?
assume that the losses due to incomplete combustion etc. are the same for both fuels and that the gases behave ideally.
heats of combustion:
CH4= 809 kJ/mol C4H10=2978 kJ/mol
Moderation Team
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