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Q3. A pure hydrocarbon fuel is completely burned in air.

The volumetric analysis of the dry exhaust gas gives

Calculate EACH of the following:

(a) the percentage mass analysis of the fuel; (8)

(b) the air to fuel ratio by mass;(4)

(c) the gravimetric analysis of the total exhaust gas.(4)

Note: atomic mass relationships H = 1, C = 12, O = 16, N = 14

air contains 21% oxygen by volume.