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Chemical Reaction Engineering

Chemical Reaction Engineering
A chemical reaction is of zero order, when the reaction rate is (where, CA = concentration of reactant)

∝ 1/CA
∝ CA
Independent of temperature
None of these

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Chemical Reaction Engineering
The energy of activation of a chemical reaction

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

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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

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

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Chemical Reaction Engineering
A reaction which is catalysed by a base is catalysed by all substances which have a tendency to

Gain a proton
Gain an electron
None of these
Lose a proton

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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.

16
43838
43846
8

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Chemical Reaction Engineering
A first order reaction requires two equal sized CSTR. The conversion is

Less when they are connected in series
Same whether they are connected in series or in parallel
More when they are connected in parallel
More when they are connected in series

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