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Chemical Reaction Engineering

Chemical Reaction Engineering
The conversion for a first order liquid phase reaction. A → B in a CSTR is 50%. If another CSTR of the same volume is connected in series, then the % conversion at the exit of the second reactor will be

60
75
100
90

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Chemical Reaction Engineering
Which of the following resistances is not involved in a gas phase catalytic (gas- solid) reaction?

Surface phenomenon resistance
Ash resistance
Gas film and pore surface diffusion resistances for reactants
Gas film and pore surface diffusion resistances for products

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Chemical Reaction Engineering
If the catalyst pore size is small in comparison with the mean free path, collisions with the pore wall controls the process'. The diffusivity under this condition is called 'Knudsen diffusivity', which is affected by the

Both A & B
Temperature
Neither A nor B
Pressure

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Chemical Reaction Engineering
When the reaction is dominated by in-traparticle diffusion, the apparent order of reaction (nD) as measured is related to the true order (n) as

ND = (n + 1)/2
None of these
ND = n + 1
ND = n/2

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

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

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Chemical Reaction Engineering
The rate constant of a first order reaction depends on the

Concentration of the product
Time
Temperature
Concentration of the reactant

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