7. Determine the order and rate constant of the reaction occurring at a given temperature T, K, using data on the course of the process in time t (from the beginning of the reaction).

Option Reaction t, min a T, K
1 K2S2O8 2KI→2K2SO4 I2
a – volume of 0.01 n
Na2S2O3 spent on titration of 25*10-6 m3 sample, cm3
9 4.52 298.2
16 7.80
52 14.19
∞ 20.05

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