Chemical Engineering - Chemical Reaction Engineering

36. 

With the same reaction time, initial concentration and feed rate, the reaction 2A B is carried out separately in CSTR and P.F. reactor of equal volumes. The conversion will be

A. higher in P.F. reactor
B. higher in CSTR
C. same in both the reactors
D. data insufficient; can't be predicted

Answer: Option A

Explanation:

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37. 

For any reaction, we may write conversion as a function of

A. time
B. temperature
C. concentration
D. all (a), (b) & (c)

Answer: Option D

Explanation:

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38. 

The use of space time is preferred over the mean residence time in the design of a/an

A. batch reactor
B. ideal tubular-flow reactor
C. slurry reactor
D. CSTR

Answer: Option B

Explanation:

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39. 

Autocatalytic reactions are best carried out in a

A. CSTR
B. CSTR in series
C. plug flow reactor
D. recycle reactor

Answer: Option D

Explanation:

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40. 

The gas phase reaction 2A B is carried out in an isothermal plug flow reactor. The feed consists of 80 mole % A and 20 mole % inerts. If the conversion of A at the reactor exit is 50%, then CA/CA0 at the outlet of the reactor is

A. 2/3
B. 5/8
C. 1/3
D. 3/8

Answer: Option B

Explanation:

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