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Consider the following statements about adiabatic operation.
1. Temperature and conversion are linearly related along the reactor.
2. The energy balance reduces to a straight line on a conversion temperature plot.
3. Adiabatic operation is always the safest choice.

  • A.All of them
  • B.1 and 2 only
  • C.3 only
  • D.1 only

Answer: B

The first two are correct and make adiabatic operation particularly easy to analyse. The third is quite wrong, since adiabatic operation offers no means of arresting a runaway once it has begun. The straight line makes the algebra simple.

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