Students may do this by plotting the data three different ways. For each plot, time goes on the x-axis. A zero-order reaction is linear when [NOBr] on the y-axis. A first-order reaction is linear when In[NOBr] is on the y-axis. A second-order reaction is linear when 1/[NOBr] is on the y-axis. t 0 5 10 15 50 85 [NOBr] 0.0653 0.0514 0.0424 0.0361 0.0177 0.0117 S M hat is the rate law for the reaction? (Rate equations take the general form 'rate = k. [A] [B]'.) hat is the value of the rate constant at the temperature of the experiment? 826 x chemPad XX rate = K[NOBr]2 rate = K[NOBr]^2 Correct. Help Greek

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
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Nitrosyl bromide decomposes by the reaction 2 NOBr(g) → 2 NO(g) + Br₂(g). Show that the following data are consistent with a second-order reaction and determine the second-order rate constant for the reaction.
Students may do this by plotting the data three different ways.
For each plot, time goes on the x-axis.
A zero-order reaction is linear when [NOBr] on the y-axis.
A first-order reaction is linear when In[NOBr] is on the y-axis.
A second-order reaction is linear when 1/[NOBr] is on the y-axis.
t
[NOBr]
0
0.0653
5
10
0.0514 0.0424
What are the units for the rate law?
OM-2.5-1
OM-3.5-1
M-2.5-2
M-1. s-1
15
0.0361
50
0.0177
85
0.0117
S
M
What is the rate law for the reaction? (Rate equations take the general form 'rate = k. [A] . [B]'.)
What is the value of the rate constant at the temperature of the experiment?
4.0 826
X
chemPad
XX
rate = k[NOBr]²
rate = k[NOBr]^2
Correct.
→ Help
Greek
Transcribed Image Text:Nitrosyl bromide decomposes by the reaction 2 NOBr(g) → 2 NO(g) + Br₂(g). Show that the following data are consistent with a second-order reaction and determine the second-order rate constant for the reaction. Students may do this by plotting the data three different ways. For each plot, time goes on the x-axis. A zero-order reaction is linear when [NOBr] on the y-axis. A first-order reaction is linear when In[NOBr] is on the y-axis. A second-order reaction is linear when 1/[NOBr] is on the y-axis. t [NOBr] 0 0.0653 5 10 0.0514 0.0424 What are the units for the rate law? OM-2.5-1 OM-3.5-1 M-2.5-2 M-1. s-1 15 0.0361 50 0.0177 85 0.0117 S M What is the rate law for the reaction? (Rate equations take the general form 'rate = k. [A] . [B]'.) What is the value of the rate constant at the temperature of the experiment? 4.0 826 X chemPad XX rate = k[NOBr]² rate = k[NOBr]^2 Correct. → Help Greek
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