А00000176 256 For reaction

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256 For the reaction (CH3)3CBr + H2O  (CH3)3COH + HBr, experimental data were obtained on the dependence of the current concentration of the initial substance on time:
t, h 0.00 3.15 6.20 10.00 18.30 30.80
[(CH3)3CBr]102, mol/l 10.39 8.96 7.76 6.39 3.53 2.07
Find the reaction order by differential method, rate constant and half-life.