10. The graph bellows shows the conversion of acetonitrile to methyl isocyanide as a function of time at 500°C according to the reaction: CH;CN(g) → CH;NC(g) at Conversion of Acetonitrile to Methyl Isocyanide at 500°C 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 10 15 25 30 35 45 50 55 Time (hrs) a) Determine the half-life of 1.0 mol/L CH3CN in hours. b) Is the order of conversion of acetonitrile to methyl isocyanide first order, zero order, or second order? Explain how the order can be determined from this graph. c) How long will it take (in hours) for 85% of the CH3CN to convert to CH3NC? 40 20 [CH3CN] (mol/L)

Chemistry: Principles and Practice
3rd Edition
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Chapter13: Chemical Kinetics
Section: Chapter Questions
Problem 13.86QE
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10. The graph bellows shows the conversion of acetonitrile to methyl isocyanide as a
function of time at 500°C according to the reaction: CH;CN(g) → CH;NC(g) at
Conversion of Acetonitrile to Methyl Isocyanide at 500°C
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
10
15
25
30
35
45
50
55
Time (hrs)
a) Determine the half-life of 1.0 mol/L CH3CN in hours.
b) Is the order of conversion of acetonitrile to methyl isocyanide first order, zero
order, or second order? Explain how the order can be determined from this graph.
c) How long will it take (in hours) for 85% of the CH3CN to convert to CH3NC?
40
20
[CH3CN] (mol/L)
Transcribed Image Text:10. The graph bellows shows the conversion of acetonitrile to methyl isocyanide as a function of time at 500°C according to the reaction: CH;CN(g) → CH;NC(g) at Conversion of Acetonitrile to Methyl Isocyanide at 500°C 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 10 15 25 30 35 45 50 55 Time (hrs) a) Determine the half-life of 1.0 mol/L CH3CN in hours. b) Is the order of conversion of acetonitrile to methyl isocyanide first order, zero order, or second order? Explain how the order can be determined from this graph. c) How long will it take (in hours) for 85% of the CH3CN to convert to CH3NC? 40 20 [CH3CN] (mol/L)
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