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Chemical Reaction Engineering

Chemical Reaction Engineering
When the density of the reaction mixture is constant in a chemical reaction, the ratio of the mean residence time to space time is

1
> 1
< 1

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Chemical Reaction Engineering
The conversion in a mixed reactor/accomplishing a reaction A 3R is 50% when gaseous reactant 'A' is introduced at the rate of 1 litre/second and the leaving flow rate is 2 litres/second. The holding time for this operation is __________ second.

3
2
0.5
1

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Chemical Reaction Engineering
If the time required to complete a definite fraction of reaction varies inversely as the concentration of the reactants, then the order of reaction is

3
1
2

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Chemical Reaction Engineering
For a gaseous phase reaction, rate of reaction is equal to K. CA . CB. If the volume of the reactor is suddenly reduced to l/4th of its initial volume, then the rate of reaction compared to the original rate will be __________ times.

43846
43838
16
8

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Chemical Reaction Engineering
The rate of reaction of a/an __________ reaction is not affected by temperature rise.

Consecutive
Autocatalytic
Zero order
Photochemical

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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

Operational yield
Relative yield
None of these
Selectivity

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