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1. the temperature dependency of the rate constant for a reaction is as follows-

ID: 1004277 • Letter: 1

Question

1. the temperature dependency of the rate constant for a reaction is as follows-see data number in the picture below and the question under the picture (show all your calculations for part a and part b)

a. calculate both energy of activation for the reaction and the frequency factor and attach any plots you utilized to answer the question

b. what is the rate constant for this reacion at 90 degree celsius?

2. what molecularity descriptor defines each of the following elementary steps?-see data in the picture below (show all your calculations for parts a, b, and c)

3. what are the three requirements that are necessary for a theoretical miscroscopic reaction mechnism to be considered valid? (explain your answer)

4. If you are unable to experimentally detect any of the intermediates that are proposed by a mechanism, does that disprove the mechanism? Explain. (show your works)

yardoy expaim the effect of concentration of reaction emperature dependeney of the rate constant for a reaction is as fol art (oy explain the effect of concentration of reaction (65 pts) The temperature d temp (C) 10 18 25 3542 6 2.34 3.25 4.50 5.83 7.50 15.2 (s) Calculate borth the nersy of activation for the reaction and the frequeney any plets you walized for amswer the question (b) What is the rate constant for this resefion at 9r

Explanation / Answer

1) ln(k2/k1) = Ea/R[1/T1-1/T2]

   ln(3.25/2.34) = x/8.314((1/283)-(1/291)

Ea = activation energy = 281.11 kj/mol

b)

ln(k2/k1) = Ea/R[1/T1-1/T2]

   ln(x/(2.34*10^-2)) = 281110/8.314((1/283)-(1/363)

   K2 = rate constant at 90 C = 6.37*10^9 M-1.Sec-1.