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Q1. A fuel of mass analysis 84% carbon and 16% hydrogen is completely burned in air.

The dry flue gas analysis shows they contain 81% nitrogen by volume.

(a) Determine, using molar volumes, the full combustion equation for 1 kg of fuel.

(b) Calculate EACH of the following:

(i) The air fuel ratio by mass

(ii) The mass of water condensed per kg of fuel when the flue gas is at 1.01 bar and 20ºC.

Note: Relative atomic masses H =1, C =12, N =14, O =16

Air contains 21% oxygen by volume.

The Molar mass of air may be taken as 29 kg/kmol.