52. (v18-1-123) Yopiq idishda yuqori
A + 2B = 2C + D reaksiya borsa va unda D ning hosil bolish tezligi 001 mol/l-s boisa, reaksiya boshlanishidan old in Р’ = 1,2 mol/l-s, D = 0 mol/l-s boisa, qancha vaqt otgach Р’ = D boladi? *
A)80 B)60 C)40
D) 50