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Chemical Reaction Engineering

Chemical Reaction Engineering
Exothermic reactions are best carried out in

A CSTR
A plug flow reactor followed by CSTR
CSTR followed by a plug flow reactor
CSTR in series

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Chemical Reaction Engineering
Which of the following does not produce a change in the value of rate constant of a reaction?

Pressure
Temperature
Concentration and catalyst
None of these

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Chemical Reaction Engineering
The knowledge of initial concentration and rate constant is necessary to determine the half life time of a reaction of __________ order.

Zero
First
None of these
Second

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Chemical Reaction Engineering
The half life period of a first order reaction is given by (where, K = rate constant. )

1.5 K
6.93 K
2.5 K
0.693/K

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Chemical Reaction Engineering
A rise in temperature

Normally tends to increase the reaction rate
Does not affect photo-chemical reaction rates
Does not affect a catalysed reaction
All of these

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Chemical Reaction Engineering
Recycling back of outlet stream to the reactor from an ideal CSTR carrying out a first order liquid phase reaction will result in __________ in conversion.

No change
Either A or B, depends on the type of reaction
Decrease
Increase

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