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Chemical Reaction Engineering

Chemical Reaction Engineering
The vessel dispersion number (D/μL) for plug flow is

∞
750
500

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Chemical Reaction Engineering
The ratio of moles of a reactant converted into the desired product to that converted into unwanted product is called

Selectivity
Relative yield
Operational yield
None of these

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Chemical Reaction Engineering
A first order reaction requires two unequal sized CSTR. Which of the following gives higher yield ?

Smaller reactor followed by larger one
Either of the arrangement A or B will give the same yield
Large reactor followed by smaller one
Data insufficient, can

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Chemical Reaction Engineering
Which of the following factors control the design of a fluid-solid reactor?

Flow patterns of solids and fluid in the reactor
All of these
Reaction kinetics for single particle,
Size distribution of solids beingtreated

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Chemical Reaction Engineering
Study of chemical kinetics is the easiest in the case of __________ reactions.

Surface
Irreversible
Reversible
Side

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Chemical Reaction Engineering
For an isothermal second order aqueous phase reaction, A → B, the ratio of the time required for 90% conversion to the time required for 45% conversion is

4
2
11
22

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