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Q8. A fuel of mass analysis 84% Carbon and 16% Hydrogen is completely burned in air. The dry flue gas analysis shows that they contain 84% Nitrogen by volume.

(a) Use molar volumes to formulate the complete combustion equation in kmol/kg of fuel.

(b) Calculate EACH of the following:

(i) The percentage excess air by volume

(ii) The air fuel ratio by mass.

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

Air contains 21% oxygen by volume