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

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

0

∞

< 0.5

> 0.5

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Chemical Reaction Engineering
When a catalyst increases the rate of chemical reaction, the rate constant

Becomes infinite

Decreases

Increases

Remains constant

Becomes infinite

Decreases

Increases

Remains constant

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Chemical Reaction Engineering
Which of the following is not a theory of homogeneous reaction?

Radiation hypothesis

Collision theory and activated complex theory

Chain reaction theory

None of these

Radiation hypothesis

Collision theory and activated complex theory

Chain reaction theory

None of these

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Chemical Reaction Engineering
With the same reaction time, initial concentration and feed rate, the reaction 2A → B is carried out separately in CSTR and P.F. reactor of equal volumes. The conversion will be

Higher in CSTR

Same in both the reactors

Higher in P.F. reactor

Data insufficient; can't be predicted

Higher in CSTR

Same in both the reactors

Higher in P.F. reactor

Data insufficient; can't be predicted

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Chemical Reaction Engineering
In an ideal mixed reactor (at steady state), the

Composition throughout the reactor remains same

Space time is equivalent to holding time for constant density systems

All of these

Exit stream has the same composition as the fluid within the reactor

Composition throughout the reactor remains same

Space time is equivalent to holding time for constant density systems

All of these

Exit stream has the same composition as the fluid within the reactor

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Chemical Reaction Engineering
For a heterogeneous catalytic reaction

Free energy of activation is lowered in the presence of catalyst, which remains unchanged at the end of reaction

The surface of the catalyst does not play an important role during reaction

The catalyst does not form an intermediate complex with the reactant

A relatively small amount of catalyst can cause the conversion of large amount of reactants which does not mean that catalyst concentration is important

Free energy of activation is lowered in the presence of catalyst, which remains unchanged at the end of reaction

The surface of the catalyst does not play an important role during reaction

The catalyst does not form an intermediate complex with the reactant

A relatively small amount of catalyst can cause the conversion of large amount of reactants which does not mean that catalyst concentration is important

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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.

Chemical Reaction Engineering When a catalyst increases the rate of chemical reaction, the rate constant

Chemical Reaction Engineering Which of the following is not a theory of homogeneous reaction?

Chemical Reaction Engineering With the same reaction time, initial concentration and feed rate, the reaction 2A → B is carried out separately in CSTR and P.F. reactor of equal volumes. The conversion will be

Chemical Reaction Engineering In an ideal mixed reactor (at steady state), the

Chemical Reaction Engineering For a heterogeneous catalytic reaction

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

Chemical Reaction Engineering
When a catalyst increases the rate of chemical reaction, the rate constant

Chemical Reaction Engineering
Which of the following is not a theory of homogeneous reaction?

Chemical Reaction Engineering
With the same reaction time, initial concentration and feed rate, the reaction 2A → B is carried out separately in CSTR and P.F. reactor of equal volumes. The conversion will be

Chemical Reaction Engineering
In an ideal mixed reactor (at steady state), the

Chemical Reaction Engineering
For a heterogeneous catalytic reaction