12. Based on the kinetic data obtained at temperature T1 in the table, determine the order of the reaction, the rate constant, and the time during which 90% of the initial substance will react. Based on the given value of activation energy, calculate the rate constant at temperature T2, the Van't Hoff temperature coefficient, and the pre-exponential factor of the Arrhenius equation. In the table, C0 are the initial concentrations of substances.
Option Reaction, kinetic data T1, K T2, K E, kJ/mol
12 Cl-+HClO=Cl2+OH- (the concentrations of the initial substances are equal) 320 370 50
t1/2, s 1.5 3 5 7.4
C0, mol/l 0.1 0.05 0.03 0.02

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