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Chemical Reaction Engineering

Chemical Reaction Engineering
The residence time distribution of an ideal CSTR is

1/τ (-t/τ)
1/τ exp (-t/τ)
Τ exp (-t/τ)
Exp(-t/τ)

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Chemical Reaction Engineering
The most suitable reactor for carrying out an auto-thermal reaction is a

CSTR
Plug-flow reactor
Semi-batch reactor
Batch reactor

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Chemical Reaction Engineering
A first order reaction A → B occurs in an isothermal porous catalyst pellet of spherical shape. If the concentration of A at the centre of the pellet is much less than at the external surface, the process is limited by

Reaction
External mass transfer
None of these
Diffusion within the pellet

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Chemical Reaction Engineering
Collision theory gives the rate constant for bimolecular reaction as

K α e-E/RT
K α √T.e-E/RT
None of these
K α eE/RT

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Chemical Reaction Engineering
The enzyme which can catalyse the conversion of glucose to ethyl alcohol is

Maltase
Invertase
Diastase
Zymase

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Chemical Reaction Engineering
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

Same in both the reactors
Data insufficient; can't be predicted
Higher in P.F. reactor
Higher in CSTR

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