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Chemical Reaction Engineering

Chemical Reaction Engineering
For a first order chemical reaction in a porous catalyst, the Thiele modulus is 10. The effectiveness factor is approximately equal to

1
0.5
0.1

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Chemical Reaction Engineering
The extent of a reaction is

Depends on the stoichiometric co-efficient
Different for reactants and products
All of these
Dimensionless

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Chemical Reaction Engineering
Transition state theory gives the rate constant as

K α T . e-E/RT
K α eE/RT
K α √T . e-E/RT
K α e-E/RT

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Chemical Reaction Engineering
For series reaction, the relative yield

Decreases with increasing conversion
Statement in A is wrong
Is always greater for plug-flow reactor than for the single CSTR of the same volume
Both A and C hold good

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Chemical Reaction Engineering
A chemical reaction, A → 3B, is conducted in a constant pressure vessel. Starting with pure A, the volume of the reaction mixture increases 3 times in 6 minutes. The fractional conversion is

1
0.5
Data insufficient, can't be predicted
0.33

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Chemical Reaction Engineering
A typical example of an exothermic reversible reaction conducted at high pressure in industry is

Polymerisation of ethylene
Reformation of methane
Methanol synthesis
Dehydration of ethanol

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