In an engine test the dry volumetric analysis of the products was CO2 0.0527, O2 0.1338 and N2 0.8135. Assume the fuel is a pure hydrocarbon and that it is completely burnt. Write the complete balance chemical equation on volume basis. Estimate: The ratio of carbon to hydrogen in the fuel by mass. The air/fuel ratio by Assume the percentage of nitrogen in air is: 76.7% by mass and 79% by volume (or mole).

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