initial :
n1 moli: CH4 + NH3 +1,5O2 ⇒ HCN + 3H2O
n2 moli: CH4nereactionat
n3 moli NH3
amestec gazos final : m
HCN :n1 moli 27n1 = 80,36%m
CH4 : n2 moli 16n2 = 9,52%m
NH3 : n3 moli 17n = 10,12%m
(n1+n2)/n3 = (80,36/27 + 9,52/16)/(10,12/17) =(2,976+0,595)/0,595 = 6/1