Reaction Rates (Sections)
The isomerization of methyl isonitrile (CH3NC) to acetonitrile (CH3CN) was studied in the gas phase at 215 °C, and the following data were obtained:
Time (s) | (Ch3nC) (M) |
0 | 0.0165 |
2000 | 0.0110 |
5000 | 0.00591 |
8000 | 0.00314 |
12,000 | 0.00137 |
15,000 | 0.00074 |
(a) Calculate the average rate of reaction, in M/s, for the time interval between each measurement. (b) Calculate the average rate of reaction over the entire time of the data from t = 0 to t = 15,000 s. (c) Which is greater, the average rate between t = 2000 and t = 12,000 s, or between t = 8000 and t = 15,000 s? (d) Graph (CH3NC) versus time and determine the instantaneous rates in M/s at t = 5000 s and t = 8000 s.
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