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Chemical Reaction Engineering

Chemical Reaction Engineering
Holding time for flow reactors is __________ the space time, for constant fluid density

Equal to
Double
None of these
Triple

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Chemical Reaction Engineering
A reaction which is catalysed by a base is catalysed by all substances which have a tendency to

Lose a proton
None of these
Gain an electron
Gain a proton

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Chemical Reaction Engineering
The conversion in a mixed reactor/accomplishing a reaction A 3R is 50% when gaseous reactant 'A' is introduced at the rate of 1 litre/second and the leaving flow rate is 2 litres/second. The holding time for this operation is __________ second.

1
2
0.5
3

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Chemical Reaction Engineering
For identical flow rate, feed composition and for elementary first order reactions, 'N' equal sized mixed reactors in series with a total volume 'V' gives the same conversion as a single plug flow reactor of volume 'V' for constant density systems. This is true, when the value of 'N' is

≥1
>1
1
∞

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Chemical Reaction Engineering
Promoter is added to the catalyst to improve its

Porosity
None of these
Sensitivity
Surface area

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Chemical Reaction Engineering
What is the dispersion number for a CSTR?

0
∞
< 1
1

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