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Chemical Reaction Engineering

Chemical Reaction Engineering
In case of __________ reactions, the reaction rate does not decrease appreciably as the reaction proceeds.

Parallel
Auto catalytic
Series
Catalytic

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Chemical Reaction Engineering
The energy of activation of a chemical reaction

Varies as fifth power of the temperature
Both B and C
Is same as heat of reaction at constant pressure
Is the minimum energy which the molecules must have before the reaction can take place

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Chemical Reaction Engineering
The unit of frequency factor in Arhenious equation is

Dimensionless
None of these
Same as that of activation energy
Same as that of rate constant

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Chemical Reaction Engineering
When a high liquid hold up is required in a reactor for gas liquid reaction, use __________ coloumn.

Packed
Bubble
Tray
Spray

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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

None of these
External mass transfer
Diffusion within the pellet
Reaction

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Chemical Reaction Engineering
In case of a P.F.R., there

Neither A nor B
Should not be any mixing along the flow path
Both A and B
May be lateral mixing of fluid

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