MY= MC2H4 + MN2 + MCO=84
MH2=2
=> dX/H2=84/2= 42
\(M_Y=M_{C_2H_4}+M_{N_2}+M_{CO}=28+28+28=84\left(g/mol\right)\)
\(\Rightarrow d_{Y/H_2}=\dfrac{M_Y}{M_{H_2}}=\dfrac{84}{2}=42\)
\(M_Y=M_{C_2H_2}+M_{N_2}+M_{CO}=28+28+28=84\) ( g/mol )
dY/H2 = \(\dfrac{84}{2}=42\)