Trial [P] (M) [Q] (M) Rate (M/s) 1 0.100   0.050   2.25 × 10−3 2 0.100 0.150 6.75 × 10−3 3 0.200 0.050 9.00 × 10−3 A) Write the rate law for this reaction. Use k to represent the rate constant. B) Solve for k in the above rate law (express your answer to three significant figures), and select the units for k.

Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter11: Chemical Kinetics: Rates Of Reactions
Section: Chapter Questions
Problem 39QRT
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Consider the following complex reaction:

P + 2Q → Products

whose initial rate at 25 °C was measured using three different sets of initial concentrations as listed in the following table:

Trial [P]
(M)
[Q]
(M)
Rate
(M/s)
1 0.100   0.050   2.25 × 10−3
2 0.100 0.150 6.75 × 10−3
3 0.200 0.050 9.00 × 10−3

A) Write the rate law for this reaction. Use k to represent the rate constant.

B) Solve for k in the above rate law (express your answer to three significant figures), and select the units for k. 

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