Exercise 14.83 Part A Establish the order of this reaction with respect to A. Pa

Question

Exercise 14.83

Part A

Establish the order of this reaction with respect to A.

Part B

Establish the order of this reaction with respect to B.

Please show all relevant steps.

Exercise 14.83

The following data are for the reaction 2A+Bproducts. Expt 1, [B] = 1.00 M Expt 2, [B]= 0.50 M Time, min [A], M Time, min [A], M 0 1.000×103 0 1.000×103 1 0.951×103 1 0.975×103 5 0.779×103 5 0.883×103 10 0.607×103 10 0.779×103 20 0.368×103 20 0.607×103

Part A

Establish the order of this reaction with respect to A.

Part B

Establish the order of this reaction with respect to B.

Please show all relevant steps.

Explanation / Answer

1 ) order with respect to A = 1

2) order with respect to B = 0

for first order reaction rate constant :

at 1 min :

k = 1/t * ln (Ao / At)

k = 1/1 * ln (1 x10^-3 / 0.951 x 10^-3)

k = 0.05 min- 1

at 5 min

k = 1/5 * ln (1 x10^-3 / 0.779 x 10^-3)

k = 0.05 s-1

first reaction rate constant is same in all cases so . it is first order

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