Ta có:
\(n_{hh}=\frac{5,6}{22,4}=0,25\left(mol\right)\)
Gọi \(\left\{{}\begin{matrix}n_{O2}:x\left(mol\right)\\n_{Cl2}:y\left(mol\right)\end{matrix}\right.\)
\(\Rightarrow x+y=0,25\left(1\right)\)
\(\Rightarrow\frac{32x+71y}{x+y}=58\Rightarrow58x+58y=32x+71y\)
\(\Rightarrow26x=13y\) hay \(26x-13y=0\left(2\right)\)
\(\Rightarrow\frac{x}{y}=\frac{1}{2}\)
\(\left\{{}\begin{matrix}\%V_{O2}=\frac{1}{3}.100\%=33,33\%\\\%V_{Cl2}=100\%-33,33\%=66,67\%\end{matrix}\right.\)
b) \(\left(1\right)+\left(2\right)\Rightarrow\left\{{}\begin{matrix}x+y=0,25\\26x-13y=0\end{matrix}\right.\Rightarrow\left\{{}\begin{matrix}x=\frac{1}{12}\left(mol\right)\\y=\frac{1}{6}\left(mol\right)\end{matrix}\right.\)