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Decomposition of `H_2O_2` (Ist order) `H_2O_2(aq)toH_2O(l)+1/2O_2(g)` Can be monitored by titration method by pressure measurement.If `{:("time(min.)",t=0,30,oo),("Pressure (mm of Hg)",200,375,400):}` While when progress of same reaction was monitored by titration method or the volume of titrant consumed after 10 min was found to be 20 ml.Then complete the following table. `{:("Time(min)",t=0,10,30),("Pressure(mm of Hg)",200,(b),(c )),("Volume of" KMnO_4,(a),20,(d)):}` consumed (ml) |
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Answer» Correct Answer - a-40,b-300,c-375,d-5 `k=1/(30"min")ln{(400-200)/(400-375)}=1/(30"min")ln{200/25}=(ln2)/T_(1//2)` `T_(1//2)=(30 "min")(ln2)/(ln8)=10` min So, we will have `{:("Time(min)",t=0,10,30),("Pressure (in mm of Hg)",200,300,375),("Volume of" KMnO_4"consumed (ml)",40,20,5):}` |
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