A pollutant P degrades according to first order kinetics. An aqueous stream containing P at 2 kmole/m³ and volumetric flow rate 1m³ /h requires a mixed flow reactor of volume V to bring down the pollutant level to 0.5 kmole/m³ . The inlet concentration of the pollutant is now doubled and the volumetric flow rate is tripled. If the pollutant level is to be brought down to the same level of 0.5 kmole/m³ , the volume of the mixed flow reactor should be increased by a factor of

Chemical Reaction Engineering
A pollutant P degrades according to first order kinetics. An aqueous stream containing P at 2 kmole/m³ and volumetric flow rate 1m³ /h requires a mixed flow reactor of volume V to bring down the pollutant level to 0.5 kmole/m³ . The inlet concentration of the pollutant is now doubled and the volumetric flow rate is tripled. If the pollutant level is to be brought down to the same level of 0.5 kmole/m³ , the volume of the mixed flow reactor should be increased by a factor of

44015

7

3

6

44015

7

3

6

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Chemical Reaction Engineering
In case of staged packed bed reactors carrying out exothermic reaction, use

Cold shot operations for a dilute solution requiring large preheating to bring the stream upto the reaction temperature

High recycle for pure gas

All of these

Plug flow for dilute liquid requiring no large preheating of feed

Cold shot operations for a dilute solution requiring large preheating to bring the stream upto the reaction temperature

High recycle for pure gas

All of these

Plug flow for dilute liquid requiring no large preheating of feed

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Chemical Reaction Engineering
__________ is the response curve for a step input signal from a reactor.

None of these

S-curve

C-curve

I-curve

None of these

S-curve

C-curve

I-curve

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Chemical Reaction Engineering
Higher free energy of activation of a chemical reaction (at a given temperature) implies

Both B and C

Higher equilibrium conversion

Higher rate of reaction

Slower rate of reaction

Both B and C

Higher equilibrium conversion

Higher rate of reaction

Slower rate of reaction

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Chemical Reaction Engineering
Integral method for analysing the kinetic data is used

When the data are scattered

For testing specific mechanisms with simple rate expressions

None of these

Both A and B

When the data are scattered

For testing specific mechanisms with simple rate expressions

None of these

Both A and B

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Chemical Reaction Engineering
The equilibrium constant of chemical reaction __________ in the presence of catalyst.

Decreases

Can either increase or decrease (depends on the type of catalyst)

Remains unaffected

Increases

Decreases

Can either increase or decrease (depends on the type of catalyst)

Remains unaffected

Increases

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Chemical Reaction Engineering

Chemical Reaction Engineering In case of staged packed bed reactors carrying out exothermic reaction, use

Chemical Reaction Engineering __________ is the response curve for a step input signal from a reactor.

Chemical Reaction Engineering Higher free energy of activation of a chemical reaction (at a given temperature) implies

Chemical Reaction Engineering Integral method for analysing the kinetic data is used

Chemical Reaction Engineering The equilibrium constant of chemical reaction __________ in the presence of catalyst.

Chemical Reaction Engineering
In case of staged packed bed reactors carrying out exothermic reaction, use

Chemical Reaction Engineering
__________ is the response curve for a step input signal from a reactor.

Chemical Reaction Engineering
Higher free energy of activation of a chemical reaction (at a given temperature) implies

Chemical Reaction Engineering
Integral method for analysing the kinetic data is used

Chemical Reaction Engineering
The equilibrium constant of chemical reaction __________ in the presence of catalyst.