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How does the abundance of atmospheric nitrogen balance the combustion effect of oxygen?

Answer and explanation

Correct answer: It dilutes oxygen and keeps combustion intensity controlled

Answer: A. Combustion is a rapid oxidation process, and oxygen supports that process. Atmospheric air contains much more nitrogen than oxygen. Nitrogen is comparatively unreactive under ordinary conditions, so it acts mainly as a diluting component. Because oxygen is mixed with a large amount of nitrogen rather than present alone, fuels generally burn less fiercely than they would in nearly pure oxygen. B is wrong because nitrogen does not remove all oxygen; oxygen remains available for respiration and combustion. C is wrong because fire needs fuel as well as oxygen and heat. D is wrong because water vapour is not changed into a combustion gas by nitrogen. Memory cue: “Nitrogen is the air’s diluter, not an oxygen destroyer.”

Related tags

NitrogenOxygenCombustionAtmospheric CompositionAir GasesCovers The Accounting EquationRecording Of Transactions (I & Ii)Recording Of Transactions I Ii

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