Răspuns :
3H₂ + N₂⇒ 2NH₃
3 moli H₂........2 moli amoniac
x.................8 moli
x = 8*3/2= 12 moli H₂
3 moli H₂........2 moli amoniac
x.................8 moli
x = 8*3/2= 12 moli H₂