A chemistry graduate student is studying the rate of this reaction:2CI205 (g)- 2Cl, (g)+50, (g)She fills a reaction vessel with Cl,O, and measures its concentration as the reaction proceeds:[Cl,0]time(seconds)0 0.0900 M1.0 0.0451 M0.0301 M2.03.0 0.0226 M0.0181 M4.0Use this data to answer the following questions.Write the rate law for this reaction.kratex10Calculate the value of the rate constant k.Round your answer to 2 significant digits. Also beXsure your answer has the correct unit symbol.

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Asked Nov 18, 2019
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Calculate the value of the rate constant K round your answer to two significant digits also be sure your answer has the correct unit symbol. 

A chemistry graduate student is studying the rate of this reaction:
2CI205 (g)- 2Cl, (g)+50, (g)
She fills a reaction vessel with Cl,O, and measures its concentration as the reaction proceeds:
[Cl,0]
time
(seconds)
0 0.0900 M
1.0 0.0451 M
0.0301 M
2.0
3.0 0.0226 M
0.0181 M
4.0
Use this data to answer the following questions.
Write the rate law for this reaction.
k
rate
x10
Calculate the value of the rate constant k.
Round your answer to 2 significant digits. Also be
X
sure your answer has the correct unit symbol.
help_outline

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A chemistry graduate student is studying the rate of this reaction: 2CI205 (g)- 2Cl, (g)+50, (g) She fills a reaction vessel with Cl,O, and measures its concentration as the reaction proceeds: [Cl,0] time (seconds) 0 0.0900 M 1.0 0.0451 M 0.0301 M 2.0 3.0 0.0226 M 0.0181 M 4.0 Use this data to answer the following questions. Write the rate law for this reaction. k rate x10 Calculate the value of the rate constant k. Round your answer to 2 significant digits. Also be X sure your answer has the correct unit symbol.

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Expert Answer

Step 1

The zero-order, first-order, and second-order reaction follows the equation (1), (2), and (3) respectively. [A] is the concentration of a reactant at a time, t and [A]o is the concentration of the reactant at the time t = 0.

[A] [A-kt.. (1)
In[A n[A-kt.
1
1
-+ kt ... (3)
[A] [A
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[A] [A-kt.. (1) In[A n[A-kt. 1 1 -+ kt ... (3) [A] [A

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Step 2

The graphs, [A] vs t, ln[A] vs t, and 1/[A] vs t were plotted. It was found that the graph 1/[A] vs t is a straight line. Hence, the given reaction is a second-order reaction. The table and graph for 1/[A] vs t are as follows:

[Cl20
t(sec)
t(sec) 1/ICl20s]
0.09
11.11111
0.0451
1
22.17295
0.0301
2
33.22259
0.0226
3
44.24779
4
0.0181
55,24862
1/[C205] vs t
60
50
40
30
20
10
4.5
0.5
1.5
2
2.5
3.5
4
time (sec)
en
O
1/ICl20s
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[Cl20 t(sec) t(sec) 1/ICl20s] 0.09 11.11111 0.0451 1 22.17295 0.0301 2 33.22259 0.0226 3 44.24779 4 0.0181 55,24862 1/[C205] vs t 60 50 40 30 20 10 4.5 0.5 1.5 2 2.5 3.5 4 time (sec) en O 1/ICl20s

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Step 3

The order of the reaction w.r.t. concentration of Cl2O5 is two. ...

rate k[CI,0,
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rate k[CI,0,

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