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Chemical Reaction Engineering

Chemical Reaction Engineering
A chemical reaction occurs, when the energy of the reacting molecules is __________ the activation energy of reaction.

Less than
More than
Equal to or more than
Equal to

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Chemical Reaction Engineering
For a first order chemical reaction, the rate constant

Changes on changing the concentration units
None ofthese
Has unit of time⁻¹
Is not a function of the unit of time

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Chemical Reaction Engineering
For a gaseous phase reaction, rate of reaction is equal to K. CA . CB. If the volume of the reactor is suddenly reduced to l/4th of its initial volume, then the rate of reaction compared to the original rate will be __________ times.

8
16
43838
43846

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Chemical Reaction Engineering
In the fluid catalytic cracker (FCC), the cracking reaction is __________ (i) and the regeneration is ____________ (ii)

(i) endothermic (ii) exothermic
(i) exothermic (ii) exothermic
(i) exothermic (ii) endothermic
(i) endothermic (ii) enodthermic

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Chemical Reaction Engineering
The ratio of volume of mixed reactor to the volume of P.F.R. (for identical flow rate, feed composition and conversion) for zero order reaction is

∞
> 1
1

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Chemical Reaction Engineering
N' plug flow reactors in series with a total volume 'V' gives the same conversion as a single plug flow reactor of volume 'V' for __________ order reactions.

Second
Any
Third
First

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