PT: \(C_2H_4+3O_2\underrightarrow{t^o}2CO_2+2H_2O\)
\(2H_2+O_2\underrightarrow{t^o}2H_2O\)
\(CO_2+Ca\left(OH\right)_2\rightarrow CaCO_{3\downarrow}+H_2O\)
Ta có: \(n_{CaCO_3}=\dfrac{30}{100}=0,3\left(mol\right)\)
Theo PT: \(n_{C_2H_4}=\dfrac{1}{2}n_{CO_2}=\dfrac{1}{2}n_{CaCO_3}=0,15\left(mol\right)\)
\(\Rightarrow V_{C_2H_4}=0,15.22,4=3,36\left(l\right)\)
\(V_{H_2}=5,6-3,36=2,24\left(l\right)\)