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8.A reaction involves two reactants,A and B.The initial reaction rate was

By April 18, 2022No Comments

8.A reaction involves two reactants,A and B.The initial reaction rate wasmeasured with different starting concentrations of A and B and the followingresultswere obtained at 25 C:IMPORTANT:the exxponents are 10,and 103【A][B]Initial ratemol dmmol dmmol dm’s’0.20.23.2×100.40.41.3×1030.40.81.3×103a)Deduce the order of the reaction in A,in B and the overall order.Hencewrite a rate expression for the reaction.[3]order AorderB:overal oder:.atu=kLA]CB]b)Calculate a value for the rate constant,giving suitable units.[2]c)What initial rate would you expect if the initial concentrations of bothreactants were 0.1 mol dm-3?[2]d)If the overall equation for the reaction isA+BC+D,write a mechanism,indicating which step is the rate determining step,that is:i consistent with the rate expression found.ii inconsistent with the rate expression found.[2]

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