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Chemical Reaction Engineering

Chemical Reaction Engineering
Transition state theory gives the rate constant as

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

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Chemical Reaction Engineering
If pore diffusion is the controlling step in a solid catalysed reaction, the catalyst

None of these
Internal surface area is utilised efficiently
Porosity is very important
Porosity is of less importance

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Chemical Reaction Engineering
A second order reaction of the form A + B → C is called a pseudo-first order reaction, when

CA0 > CB0
CB0 ≥ CB0
CB0 > CA0
CA0 = CB0

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Chemical Reaction Engineering
In case of a __________ reactor, the composition in the reactor and at the exit of the reactor is the same.

Semi-batch
Tubular
Batch
Back-mix

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Chemical Reaction Engineering
A catalyst in a chemical reaction

All of these
Increases the frequency of collisions of reacting species
Decreases the activation energy
Alters the reaction mechanism

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Chemical Reaction Engineering
Catalyst carriers

Have very high selectivity
Increase the activity of a catalyst
Provide large surface area with a small amount of active material
Inhibit catalyst poisoning

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