n1 moli C6H6 + Cl2 ⇒ C6H5-Cl + HCl
n2 moli C6H6 + 2Cl2 ⇒C6H4Cl2 + 2HCl
n3 moli C6H6 + 3Cl2 ⇒C6H3Cl3 + 3HCl
n4 moli C6H6 neractionat
n1 + n2 + n3 + n4 = n
n1/6 = n2/3 = n3/ 2 = n4/1 = n /12 ⇒ n1 = n/2 n2 = n/4 n3 = n/6 n4 = n/12
Cu = n1/n ·100 = 50%
Ct = (n1 + n2 + n3)/n ·100 = 11/12 ·100 = 91,66%
η = Cu/Ct ·100 = 54,55%