If the decomposition of a chemical is monitored at 25°C and the initial concentration is 3.1 x10-2 M, the final concentration at 60 minutes is 2.1 x102 M, what is the rate constant of this first order reaction? a) 6.5 x 10-3 min 1 b) 3.2 x 10-3 min 1 O c) 1.1 x 10-3 min 1 O d) 2.3 x 10-3 min-1
If the decomposition of a chemical is monitored at 25°C and the initial concentration is 3.1 x10-2 M, the final concentration at 60 minutes is 2.1 x102 M, what is the rate constant of this first order reaction? a) 6.5 x 10-3 min 1 b) 3.2 x 10-3 min 1 O c) 1.1 x 10-3 min 1 O d) 2.3 x 10-3 min-1
Chemistry
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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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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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Transcribed Image Text:If the decomposition of a chemical is monitored at 25°C and the initial
concentration is 3.1 x10-2 M, the final concentration at 60 minutes is 2.1 x10-2
M, what is the rate constant of this first order reaction?
O a) 6.5 x 10-3 min 1
O b) 3.2 x 10-3 min-1
c) 1.1 x 10-3 min1
d) 2.3 x 10-3 min 1
Expert Solution
Step 1
1st order rate equation-
A= B+C
K= (1/t) ln [A](initial)/[A](final)
Where , K = rate constant, t = time, [ A] (initial)= initial concentration of A , [A] (final) = final concentration of A
We can calculate any of value among k, t , initial and final concentration of A, if others are given.
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