What is the theoretical requirement of air in m3 at STP for the complete combustion of 100 m3 at STP of a fuel consisting of pure CH4 Assume that air contains 21 vol of oxygen Gate metallurgical engineering 2014

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What is the theoretical requirement of air (in m3 at STP) for the complete combustion of 100 m3 (at STP) of a fuel consisting of pure CH4? Assume that air contains 21 vol.% of oxygen. _____. (-Gate metallurgical engineering 2014)

Appeared in Gate metallurgical engineering 2014

By:Aparna-Dasgupta

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Answer: 951 to 953

rapid chemical combination of a substance with oxygen, involving the production of heat and light.
The minimum amount of air which supplies the required amount of oxygen for complete combustion of a fuel is called the stoichiometric or theoretical air. The amount of air in excess of the stoichiometric air is called excess air. It is usually expressed in terms of the stoichiometric air as percent excess air.

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