a)
\(\left\{{}\begin{matrix}d_{CO_2/H_2}=\dfrac{44}{2}=22\\d_{N_2/H_2}=\dfrac{28}{2}=14\\d_{NO_2/H_2}=\dfrac{46}{2}=23\\d_{CH_4/H_2}=\dfrac{16}{2}=8\end{matrix}\right.\)
b)
\(\left\{{}\begin{matrix}d_{CO_2/kk}=\dfrac{44}{29}=1,517\\d_{N_2/kk}=\dfrac{28}{29}=0,966\\d_{NO_2/kk}=\dfrac{46}{29}=1,586\\d_{CH_4/kk}=\dfrac{16}{29}=0,552\end{matrix}\right.\)