1.

consider a reaction that occurs by the following mechanism A + BC to AC+B AC + Dto A + CD the potential energy profile for the reaction is shown: a) Write the equation for the overall reaction. b) What are the different species present at reactions stagest 1 to 5? c) What is the rate determinig step?

Answer»

Solution :a) The equation for OVERALL reaction is:

b) State 1: BE (reactant), D (reactant), A (CATALYST)
stage 2: B………….C…………A (transition state), D (reactant)
stage 3: AC ( intermediate), B(products) , D(products)
stage 4: A..............C................D ( transition state), B (products)
Stage 5: CD (products) , B(products) ,A (catalyst)
c) The rate determining step is GIVEN by stage 3 since the potential energy is the minimum.It is: `A+BCto AC+B`


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