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From the following data, show that the decomposition of hydrogen peroxide is a reaction of the order : {:("t (min)",0,10,20),("V (ml)",46.1,29.8,19.3):} Where t is the time in minutes and V is the volume of standard KMnO_(4) solution required for titrating the same volume of the reaction mixture. |
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Answer» SOLUTION :`k=(2.303)/(t)"log"([A_(0)])/([A])` `k=((2.303)/(t))log((V_(0))/(V_(t)))` In the PRESENT CASE, V0 = 46.1 ml. The value of k at each instant can be calculated as follows :  Thus, the value of k comes out to be NEARLY constant. HENCE it is a reaction of the first order. |
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