a) CH4 + 2O2 \(\underrightarrow{to}\) CO2 + 2H2O
\(n_{CH_4}=\frac{64}{16}=4\left(mol\right)\)
b) Theo PT: \(n_{O_2}=2n_{CH_4}=2\times4=8\left(mol\right)\)
\(\Rightarrow V_{O_2}=8\times22,4=179,2\left(l\right)\)
\(\Rightarrow V_{KK}=\frac{179,2}{20\%}=896\left(l\right)\)
c) Theo PT: \(n_{CO_2}=n_{CH_4}=4\left(mol\right)\)
\(\Rightarrow m_{CO_2}=4\times44=176\left(g\right)\)
Theo pT: \(n_{H_2O}=2n_{CH_4}=2\times4=8\left(g\right)\)
\(\Rightarrow m_{H_2O}=8\times18=144\left(g\right)\)
Vậy \(m_{sp}=m_{CO_2}+m_{H_2O}=176+144=320\left(g\right)\)