61. (V20/21-135-14) Quyidagi malumotlardan foydalariib
H2C = CH2 + 302 — 2C02 + 2H20 AH = -345 kkal
Ec=c =150 kkal/mol; Ec_h = 100 kkal/mol; E0=o = 115 kkal/mol; EH=o =110 kkal/mol;
С = О bog energiyasini (kcal/mol) toping.
A)200 B)205 C)215 D)220