\(2C_2H_2\left(x\right)+5O_2\left(2,5x\right)\rightarrow4CO_2\left(2x\right)+2H_2O\)
\(CH_4\left(y\right)+2O_2\left(2y\right)\rightarrow CO_2\left(y\right)+2H_2O\)
Ta có : \(x+y=24\Rightarrow y=24-x\)
\(2,5x+2y=54\)
\(\Rightarrow2,5x+2\left(24-x\right)=54\)
\(\Rightarrow x=12ml\)
\(\Rightarrow y=12ml\)
a) \(\%C_2H_2=12.100\%:24=50\%\)
\(\%CH_4=100\%-50\%=50\%\)
b)\(V_{CO_2}=2x+y=36\left(ml\right)\)