7. Given the following mechanism, what is the rate law for the overall reaction?

Question

7. Given the following mechanism, what is the rate law for the overall reaction? slow fast overall A+2A Rate - 8. If the above mechanism is rewritten as follows, what is the rate law for the overall reaction? fast slow overall A 2B2AB Rate - 9. Carbon-14 has a half-life of 5720 years. If an old sample of wood contains 10 % of its originally carbon-14, how old is the sample? Answer years 10. The following kinetics data was obtained at varying initial reactant concentrations: Initial Rate (Ms 0.075 0.075 0.150 Determine the complete rate law for this reaction. k:1 0.050 0.100 0.100 0.0200 0.0566 0.113 Rate 11. Given the graph below, answer the following questions 0 20 a. What is the order of this reaction ys 0.025x . 001- Order a Secon order b. What is the initial concentration 0 15 o 10 c. What is the rate constant?

Explanation / Answer

7 . Rate law includes the concentration of reactant in slow step .

So as A2 = 2A is the slow step ,

So Rate = k [A2] .

8:. As slow step is A + B = AB

SO rate law equation is ;

Rate =k [A] [B] .

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