a,\(PTHH:CH_4+2O_2\rightarrow CO_2+2H_2O\)
b,\(n_{CH4}=\frac{6,72}{22,4}=0,3\left(mol\right)\)
\(\Rightarrow n_{CO2}=n_{CH4}=0,3\left(mol\right)\)
\(\Rightarrow V_{CO2}=0,3.22,4=6,72\left(l\right)\)
c.\(n_{O2}=2n_{CH4}=0,6\left(mol\right)\)
\(V_{O2}=0,6.22,4=13,44\left(l\right)\)
\(\Rightarrow V_{kk}=13,44.5=67,2\left(l\right)\)