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NEET 2009 Chemistry question

ChemistryChemical KineticsNEET 2009

For the reaction A + B products, it is observed that: (a) on doubling the initial concentration of A only, the rate of reaction is also doubled and (b) on doubling the initial concentrations of both A and B, there is a change by a factor of 8 in the rate of the reaction. The rate of this reaction is given by:

Answer: (1)

Solution

Let rate . (a) Doubling [A] only doubles the rate: , so . (b) Doubling both [A] and [B] increases the rate 8 times: , so $x +

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Question ID VK-090333