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Chemical Reaction Engineering

Chemical Reaction Engineering
The knowledge of initial concentration and rate constant is necessary to determine the half life time of a reaction of __________ order.

None of these
Zero
Second
First

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Chemical Reaction Engineering
An exothermic reaction takes place in an adiabatic reactor. The product temperature __________ reactor feed temperature.

Is always equal to
May be greater or less than
Is always less than
Is always greater than

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

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

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Chemical Reaction Engineering
The performance equations for constant density systems are identical for

P.F.R. and backmix reactor
P.F.R, batch reactor and backmix reactor
Batch reactor and backmix reactor
P.F.R. and batch reactor

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Chemical Reaction Engineering
A stirred tank reactor compared to tubular-flow reactor provides

All of these
Permits operation at the optimum temperature for a long reaction time
Higher overall selectivity for a first order consecutive reaction
More uniform operating conditions

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

None of these
Equal to
Triple
Double

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