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Chemical Reaction Engineering

Chemical Reaction Engineering
Holding time for flow reactors is __________ the space time, for constant fluid density

Triple
None of these
Double
Equal to

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Chemical Reaction Engineering
Time required for 50% decomposition of a liquid in an isothermal batch reactor following first order kinetics is 2 minutes. The time required for 75% decomposition will be about __________ minutes.

8
6
3
4

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Chemical Reaction Engineering
For a zero order reaction, the concentration of product increases with the

Total pressure
Increase in initial concentration
Increase of reaction time
Decrease in total pressure

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Chemical Reaction Engineering
Velocity of a chemical reaction

None of these
Increases with increase of pressure of reactants for all reactions
Decreases with increase of reactant concentration
Decreases with increase in temperature

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Chemical Reaction Engineering
The importance of diffusion in a catalyst are increased by

All of these
An active surface of the catalyst
Small pore diameter
Large catalyst particle size

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Chemical Reaction Engineering
The concentration of A in a first order reaction, A → B, decreases

Logarithmically with time
Linearly with time
Very abruptly towards the end of the reaction
Exponentially with time

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