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Chemical Reaction Engineering

Chemical Reaction Engineering
The synthesis of proteins and metabolism in biological objects occur in the presence of biocatalyst called

Fungi
Haemoglobin
None of these
A ferment or an enzyme

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Chemical Reaction Engineering
With increase in initial concentration, the fractional conversion of a first order reaction in a given time

Decreases
Remains constant
Increases
Unpredictable

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Chemical Reaction Engineering
Enzymes are destroyed, when the

Reactant's concentration is very low
Temperature is very high
Reaction rate is independent of the reactant's concentration
Reactant's concentration is very high

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Chemical Reaction Engineering
For the gaseous reaction 2A → B, where the feed consists of 50 mole % A and 50 mole % inerts, the expansion factor is

-0.25
1
-0.5

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Chemical Reaction Engineering
A first order reaction is to be treated in a series of two mixed reactors. The total volume of the two reactors is minimum, when the reactors are

Of such size that the ratio of their volumes is < 5
None of these
Equal in size
Of different sizes

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Chemical Reaction Engineering
For nearly isothermal operation involving large reaction time in a liquid-phase reaction, the most suitable reactor is a __________ reactor.

Fixed bed
Stirred tank
Batch
Tubular flow

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