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Chemical Reaction Engineering

Chemical Reaction Engineering
In a/an __________ reactor, there is exchange of heat with the surroundings with sizeable temperature variation.

None of these
Adiabatic
Isothermal
Non-adiabatic

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

< 1
∞
1
0

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Chemical Reaction Engineering
A reaction in which one of the products of reaction acts as a catalyst is called a/an __________ reaction.

Autocatalytic
Catalytic
Photochemical
None of these

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Chemical Reaction Engineering
A batch reactor is characterised by

Variation in reactor volume
Constant residence time
Very low conversion
Variation in extent of reaction and properties of the reaction mixture with time

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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
Reaction
External mass transfer
Diffusion within the pellet

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Chemical Reaction Engineering
For the non catalytic reaction of particles with surrounding fluid, the same needed to achive the same fractional conversion for particles of different unchanging sizes is proportional to the particle diameter, when the __________ is the controlling resistance.

Chemical reaction
Film diffusion
Either A, B or C
Diffusion through ash layer

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