In a study of the decomposition of hydrogen peroxide in dilute sodium hydroxide at 20°C.
H2O2 (aq) →H2O (l) + 1/2O2 (g)
the concentration of H2O2 was followed as a function of time.
It was found that a graph of ln[H2O2] versus time in minutes gave a straight line with a slope of -1.61 x 10-3 min-1 and a y-intercept of -3.44.
Based on this plot, the reaction is ______________ order in H2O2 and the half life for the reaction is ____________ minutes.
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