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How do you determine the overall order of the reaction?

How do you determine the overall order of the reaction?

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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How do you determine the overall order of the reaction?

2. 173 Temperature 20 , 3 °C * Bate is dependent on temp dup Run k Rate (A[I2]/At) [I] [1] V Units: 1. 0.0800 m h- 41.0s/1.22x 1os 6.59x10 ml -4 92.055.42r 10-6.59x103 m 1.39 0.0800 m .030D m 0.00100m5.0 60.Os 8.33 x 10-6 6.30x103 ms •147-1 20m 3. 4. 0.0400m0.0400 m 0.00100m 5.00x10 7. 6.434103 5. 10.200 m)(20.0mL) (0.100m)( 20.00ML) (0.0050em)(10.00ml) AÚ,]- [$,0,], 50.00mL 2. Determine the order with respect to [S2Og]. L (0.0800)(0.0400)0.0010o) v (o.oroo) a (o.0200)b (o.0010je 1. Determine the order with respéct to TI ]. hq1 una to apea by C. k (0.800) " (0.040o)b Co.00100) 01x 22.1 6.10 x10-6 2. 247:25 log(2.247) - blog(2) kl0.0900)°(0.0400)b (o.00100) 9. %3D 3. Determine the overall order of the reaction. 4. Calculate the average k (with units). All 5 Ks (.59+6.59t6.30 +6.59.43)x10-3 Reachon is independent of [S203²-], because its the same m l, 50 x 10* 5. Write the overall rate law expression with the k value specific to this reaction. in each vun..C-0 C. %3D %3D 9.
Transcribed Image Text:2. 173 Temperature 20 , 3 °C * Bate is dependent on temp dup Run k Rate (A[I2]/At) [I] [1] V Units: 1. 0.0800 m h- 41.0s/1.22x 1os 6.59x10 ml -4 92.055.42r 10-6.59x103 m 1.39 0.0800 m .030D m 0.00100m5.0 60.Os 8.33 x 10-6 6.30x103 ms •147-1 20m 3. 4. 0.0400m0.0400 m 0.00100m 5.00x10 7. 6.434103 5. 10.200 m)(20.0mL) (0.100m)( 20.00ML) (0.0050em)(10.00ml) AÚ,]- [$,0,], 50.00mL 2. Determine the order with respect to [S2Og]. L (0.0800)(0.0400)0.0010o) v (o.oroo) a (o.0200)b (o.0010je 1. Determine the order with respéct to TI ]. hq1 una to apea by C. k (0.800) " (0.040o)b Co.00100) 01x 22.1 6.10 x10-6 2. 247:25 log(2.247) - blog(2) kl0.0900)°(0.0400)b (o.00100) 9. %3D 3. Determine the overall order of the reaction. 4. Calculate the average k (with units). All 5 Ks (.59+6.59t6.30 +6.59.43)x10-3 Reachon is independent of [S203²-], because its the same m l, 50 x 10* 5. Write the overall rate law expression with the k value specific to this reaction. in each vun..C-0 C. %3D %3D 9.
Expert Solution
Order wrt I-

Rate = k * [I-]^a * [S2O8 2-]^b

k = Rate constant

a,b: Order of reaction

Now,

Rate 1 / Rate 4 = k * [0.08]^a * [0.04]^b / k * [0.04]^a * [0.04]^b

1.22*10^5 / 6.1*10^-6 = (0.08/0.04)^a

2 = 2^a

a = 1

 

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