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Arrange the steps of characterising a non-ideal reactor in order.
1. fit a model parameter to the variance
2. run a tracer test and obtain the E curve
3. use the model to estimate conversion
4. compute the mean and the variance

  • A.3 - 1 - 4 - 2
  • B.4 - 2 - 1 - 3
  • C.2 - 1 - 4 - 3
  • D.2 - 4 - 1 - 3

Answer: D

The parameter cannot be fitted before the moments are known, and conversion is the last step because it needs the model as well as the kinetics. Skipping the moments loses the connection to the data. Each step depends on the one before.

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