Organic compounds that contain large proportions of nitrogen and oxygen tend to be unstable and are easily decomposed. Hexanitroethane, C2(NO2)6, decomposes according to the equation C2(NO2)6 2NO2+ 4NO + 2CO2 The reaction in CCI4 solvent is first order with respect to C2(NO2)6. At 79.0°C, k = 0.000230 s1 and at 111.9 °C, k = 0.0116 s1. (a) What is the half-life of C2(NO2)6 at 79.0 °C? i seconds eTextbook and Media (b) What is the half-life of C2(NO2)6 at 111.9 °C? i seconds 7:46 P 19-Apr-2

Chemistry for Engineering Students
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Chapter11: Chemical Kinetics
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Problem 11.55PAE: The following rate constants were obtained in an experiment in which the decomposition of gaseous...
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Organic compounds that contain large proportions of nitrogen and oxygen tend to be unstable and are easily decomposed.
Hexanitroethane, C2(NO2)6, decomposes according to the equation
C2(NO2)6 2NO2+ 4NO + 2CO2
The reaction in CCI4 solvent is first order with respect to C2(NO2)6. At 79.0°C, k = 0.000230 s1 and at 111.9 °C, k = 0.0116 s1.
(a)
What is the half-life of C2(NO2)o at 79.0 °C? i
seconds
eTextbook and Media
(b)
What is the half-life of C2(NO2)6 at 111.9 °C? i
seconds
7:46 P
19-Apr-2
17
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9.
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Transcribed Image Text:Organic compounds that contain large proportions of nitrogen and oxygen tend to be unstable and are easily decomposed. Hexanitroethane, C2(NO2)6, decomposes according to the equation C2(NO2)6 2NO2+ 4NO + 2CO2 The reaction in CCI4 solvent is first order with respect to C2(NO2)6. At 79.0°C, k = 0.000230 s1 and at 111.9 °C, k = 0.0116 s1. (a) What is the half-life of C2(NO2)o at 79.0 °C? i seconds eTextbook and Media (b) What is the half-life of C2(NO2)6 at 111.9 °C? i seconds 7:46 P 19-Apr-2 17 19A FO 12/A prt sc delete 18 LeLl %23 3 7\ 8. 9. R. T. Y. 2\
(c)
If 0.100 mol of C2(NO2)6 is dissolved in CCI4 at 79.0°C to give 1.00 L of solution, what will be the C2(NO2)6 concentration after
50.0 minutes? i
(d)
What is the value of the activation energy of this reaction, expressed in kilojoules?
kJ/mol
(e)
What is the rate constant at 157.0 °C? i
746 PM
19-Apr-22
ort s
delate
%23
96
bockspo
4.
8.
9.
W
E
R
LLI
Transcribed Image Text:(c) If 0.100 mol of C2(NO2)6 is dissolved in CCI4 at 79.0°C to give 1.00 L of solution, what will be the C2(NO2)6 concentration after 50.0 minutes? i (d) What is the value of the activation energy of this reaction, expressed in kilojoules? kJ/mol (e) What is the rate constant at 157.0 °C? i 746 PM 19-Apr-22 ort s delate %23 96 bockspo 4. 8. 9. W E R LLI
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