The pie-style bar shows the gases collected from burning a hydrocarbon fuel in plenty of air. Segment M is the larger product. Which gas is segment M?
Question 1 Report
The pie-style bar shows the gases collected from burning a hydrocarbon fuel in plenty of air. Segment M is the larger product. Which gas is segment M?
Answer Details
Burning in plenty of air means complete combustion, and a hydrocarbon contains only carbon and hydrogen. Every carbon atom is fully oxidised to carbon dioxide and every hydrogen atom ends up in water, as in CH4 + 2O2 → CO2 + 2H2O. That is why the label beneath the bar names carbon dioxide and water as the collected products, with M the larger share.
Carbon monoxide only forms when oxygen is limited, which the phrase plenty of air rules out. Sulfur dioxide would need sulfur, and a hydrocarbon contains none. Hydrogen is not released as a gas, because it is bound up in the water formed. Check the oxygen supply before deciding which carbon oxide forms.
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