\(n_{C_2H_4}=\dfrac{3,36}{22,4}=0,15\left(mol\right)\\ a,PTHH:C_2H_4+3O_2\rightarrow\left(t^o\right)2CO_2+2H_2O\\ b,n_{O_2}=3.n_{C_2H_4}=3.0,15=0,45\left(mol\right)\\ n_{CO_2}=n_{CH_4}=0,15\left(mol\right)\\ V_{O_2\left(đktc\right)}=0,45.22,4=10,08\left(l\right)\\ V_{CH_4\left(đktc\right)}=0,15.22,4=3,36\left(l\right)\)
Đề hỏi đktc em nhỉ?