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Chemical Reaction Engineering

Chemical Reaction Engineering
If Thiele modulus is __________ , then the pore diffusion resistance in a catalyst may be considered as negligible.

∞
0
< 0.5
> 0.5

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Chemical Reaction Engineering
A liquid decomposes by irreversible first order kinetics and the half life period of this reaction is 8 minutes. The time required for 75% conversion of the liquid will be __________ minutes.

12
4
8
16

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Chemical Reaction Engineering
The order of a chemical reaction is

Never fractional
Always equal to the total stoichiometric number of reactants
None of these
An experimentally determined quantity

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Chemical Reaction Engineering
The rate constant of a chemical reaction increases by 100 times when the temperature is increased from 400 °K to 500 °K. Assuming transition state theory is valid, the value of E/R is

8621°K
8764°K
9210°K
8987°K

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Chemical Reaction Engineering
In an exothermic chemical reaction, the reactants compared to the products have

Less energy
Same energy
Higher temperature
More energy

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Chemical Reaction Engineering
Inversion of cane sugar is an example of

Bimolecular reaction with second order
Unimolecular reaction with second order
Unimolecular reaction with first order
Bimolecular reaction with first order

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