CH4 + 2O2 -> CO2 + 2H2O
nCH4=\(\dfrac{8}{22,4}=\dfrac{5}{14}\left(mol\right)\)
nO2=\(\dfrac{6}{22,4}=\dfrac{15}{56}\left(mol\right)\)
Vì \(2.\dfrac{5}{14}>\dfrac{15}{56}\) nên CH4 dư
theo PTHH ta có:
\(\dfrac{1}{2}\)nO2=nCO2=\(\dfrac{15}{112}\left(mol\right)\)
VCO2=\(\dfrac{15}{112}.22,4=3\left(lít\right)\)