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Chemical Reaction Engineering

Chemical Reaction Engineering
Fluid flow in a real packed bed can be approximated as __________ model.

Mixed flow
Plug flow
Tank in series
Dispersion

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Chemical Reaction Engineering
The reactions with low activation energy are

Slow
Fast
Always spantaneous
Non-spontaneous

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Chemical Reaction Engineering
Which of the following is a characteristic of an ideal plug flow reactor?

Flat velocity profile
Axial dispersion
Uniform mixing
None of these

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Chemical Reaction Engineering
The 'E' curve for a non-ideal reactor defines the fraction of fluid having age between t and t + dt

Averaged over the inlet and outlet
At the outlet
At the inlet
In the reactor

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

Equal to
Triple
Double
None of these

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Chemical Reaction Engineering
From Arhenius law, a plot of loge K versus 1/T gives a straight line with a slope of (-E/R). The unit of E/R is

K cal/°K
K cal
K cal. °K
°K

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