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Chemical Engineering - Chemical Reaction Engineering

Exercise : Chemical Reaction Engineering - Section 4
11.
The conversion for a second order, irreversible reaction (constant volume), , in batch mode is given by
Answer: Option
Explanation:
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12.
Pick out the wrong statement.
The integral method of analysing kinetic data is used when the data is scattered.
The differential method of analysing kinetic data requires more accurate or larger amounts of data.
When the reaction rate is independent of temperature, the reaction is said to be of zero order.
The ratio of volumes of plug flow reactor to that of mixed reactor is always less than one for identical feed composition, flow rate, conversion and for all positive reaction orders.
Answer: Option
Explanation:
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13.
A backmix reactor
is same as plug-flow reactor.
is same as ideal stirred tank reactor.
employs mixing in axial direction only.
is most suitable for gas phase reaction.
Answer: Option
Explanation:
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14.
Rate of a chemical reaction is not influenced by the
catalyst
temperature
reactants concentration
number of molecules of reactants taking part in a reaction
Answer: Option
Explanation:
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15.
Pick out the wrong statement:
Chemical reactions with high activation energy are very temperature sensitive.
A flat velocity profile exists in a plug flow reactor.
The residence time for all the elements of fluid in case of a P.F.R. need not be same.
Half life of a reaction increases with increased initial concentration for reaction orders more than one.
Answer: Option
Explanation:
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