A sample of natural gas containing 80% methane (CH4) and rest nitrogen (N2) is burnt with 20% excess air. With 80% of the combustibles producing CO2 and the remainder going to CO, the Orsat analysis in volume percent is_________________?

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Accepted Answer

CO2 : 7.42, CO : 1.86, O2 : 4.64, N2:86.02. The Orsat analysis calculates the volume of products like CO2, CO, O2, and N2 after combustion. The given composition and excess air are used in stoichiometry to find these volumes.