InterviewSolution
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InterviewSolution
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Following are two first order reactions with their half times given at `25^(@)C` `A overset(t_(1//2) = 30 "min")(to)` Products `B overset(t_(1//2) = 40 "min") (to) ` Products The temperature coefficients of their reaction rates 3 and 2 , respectively , between `25^(@)C` and `35^(@)C` . if the above two reactions are carried out taking `0.4`M of each reactant but at different temperatures `25^(@)C` for the first reaction and `35^(@)C` for the second reaction , find the ratio of the concentration of A and B after an hour |
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Answer» Correct Answer - 2 0.4M of `A overset(30 "min")(to) 0.2 M overset(30 "min")(to) 0.1 M ` (for A) 0.4 M of `B overset(20 "min")(to) 0.2M overset(20 "min") (to) 0.1 M overset(20 "min")(to) 0.05` (for B) `"("(-d[B])/(dt)` will be doubled and hence `t_(1//2)` will be halved) `therefore ([A])/([B]) = 2` |
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