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For the conversion of methyl isonitrile to acetonitrile in the gas phase at 250 °C CH3NC → CH3 CN the following data have been obtained: [CH3NC], M 0.105 0.0682 0.0443 0.0287 time, s 0 144 288 432 The average rate of disappearance of CH3NC over the time period from t = 0 sto t = 144 s is M/s.

For the conversion of methyl isonitrile to acetonitrile in the gas phase at 250 °C CH3NC → CH3 CN the following data have been obtained: [CH3NC], M 0.105 0.0682 0.0443 0.0287 time, s 0 144 288 432 The average rate of disappearance of CH3NC over the time period from t = 0 sto t = 144 s is M/s.

Chemistry
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
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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**Conversion of Methyl Isonitrile to Acetonitrile** *Chemical Reaction:* \[ \text{CH}_3\text{NC} \rightarrow \text{CH}_3\text{CN} \] *Conditions:* - Gas phase at 250 °C *Obtained Data:* | \([\text{CH}_3\text{NC}]\), M | Time, s | |--------------------------|---------| | 0.105 | 0 | | 0.0682 | 144 | | 0.0443 | 288 | | 0.0287 | 432 | *Calculation:* Determine the average rate of disappearance for \(\text{CH}_3\text{NC}\) from \( t = 0 \, s \) to \( t = 144 \, s \). The average rate of disappearance is \(\boxed{\text{M/s}}\).
Transcribed Image Text:**Conversion of Methyl Isonitrile to Acetonitrile** *Chemical Reaction:* \[ \text{CH}_3\text{NC} \rightarrow \text{CH}_3\text{CN} \] *Conditions:* - Gas phase at 250 °C *Obtained Data:* | \([\text{CH}_3\text{NC}]\), M | Time, s | |--------------------------|---------| | 0.105 | 0 | | 0.0682 | 144 | | 0.0443 | 288 | | 0.0287 | 432 | *Calculation:* Determine the average rate of disappearance for \(\text{CH}_3\text{NC}\) from \( t = 0 \, s \) to \( t = 144 \, s \). The average rate of disappearance is \(\boxed{\text{M/s}}\).
Expert Solution
Step 1: Defining average rate of disappearance

Answer:

The average rate of disappearance is always equal to the rate of change in concentration of the reactant with respect to time as shown below:

straight r subscript avg equals negative fraction numerator increment straight C over denominator increment straight t end fraction


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