A Concentration-time study of the gas phase reaction 2 A3 3 A2 produced the data in the table below. Time [A3l (M) TA2) (M) (s) 4.00 x 104 10 2.00 x 10 3.00 x 10 4 20 1.00 x 104 4.50 x 104 30 5.00 x 10-5 What is the concentration of A2 after 30 seconds? Select one: O A 5,25 x 104 M O B. 5.00 x 104 M OC 6.00 x 104 M O D. 5.50 x 10 M
A Concentration-time study of the gas phase reaction 2 A3 3 A2 produced the data in the table below. Time [A3l (M) TA2) (M) (s) 4.00 x 104 10 2.00 x 10 3.00 x 10 4 20 1.00 x 104 4.50 x 104 30 5.00 x 10-5 What is the concentration of A2 after 30 seconds? Select one: O A 5,25 x 104 M O B. 5.00 x 104 M OC 6.00 x 104 M O D. 5.50 x 10 M
Chemistry for Engineering Students
4th Edition
ISBN:9781337398909
Author:Lawrence S. Brown, Tom Holme
Publisher:Lawrence S. Brown, Tom Holme
Chapter11: Chemical Kinetics
Section: Chapter Questions
Problem 11.40PAE: In Exercise 11.39, if the initial concentration of N2Oj is 0.100 .\1. how long will it take for the...
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Transcribed Image Text:A concentration-time study of the gas phase reaction 2 Az -3 A2 produced the data in the table below.
Time
[A31 (M)
IA2) (M)
(s)
4.00 x 104
10 2.00 x 104 3.00 x 10 4
20 1.00 x 10 4 4.50 x 104
30
5.00 x 10-5
What is the concentration of A2 after 30 seconds?
Select one:
O A 5.25 x 104 M
O B. 5.00 x 10-4 M
OC 6.00 x 104 M
O D. 5.50 x 104 M
If the activation energy for a given compound is found to be 42.0 k mol with a frequency factor of 80 x 1010, what is the rate
constant for this reaction at 298 K?
Select one:
OA 74 x 104s1
O B. 3.5 x 103 s
OC 14 x 109,1
O D. 4.6 x 10 5 s1
O E. 29 x 10 4 s1
Ne
The first-order reaction, SOd- SO, + Ca, has a haif-life of 8.75 hours at 593 K. How long will it take for the concentration of Sody
to fall to 12.5% of its initial value?
Select one:
OA 3.22 hr
O B. 0.165 hr
OC 6.06 hr
O D. 26.2 hr
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