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Chemical Reaction Engineering

Chemical Reaction Engineering
Kinetics of a solid catalysed reaction can best be studied in a __________ reactor.

Batch
Mixed
Plug-flow
None of these

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Chemical Reaction Engineering
A first order gaseous phase reaction is catalysed by a non-porous solid. The kinetic rate constant and the external mass transfer co-efficients are k and kg respectively. The effective rate constant (keff) is given by

keff = (k+ kg)/2
keff = k + kg
1/keff = 1/k + 1/kg
keff = (kkg)1/2

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Chemical Reaction Engineering
For an ideal mixed flow reactor (CSTR), the exit age distribution E(t) is given by

A step function
A ramp function
None of these
A dirac delta function

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Chemical Reaction Engineering
In flow reactors, the performance equations interrelate the rate of reaction to the

Extent of reaction
All of these
Reactor volume
Feed rate

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Chemical Reaction Engineering
A high space velocity means that a given

Both A and B
Reaction can be accomplished with small reactor
None of these
Conversion can be obtained with a high feed rate

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Chemical Reaction Engineering
Bulk diffusion in catalyst pore __________ with increase in pressure.

Decreases
Increases exponentially
Increases
Remains unchanged

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