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

7

6

44015

3

7

6

44015

3

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Chemical Reaction Engineering
In Langmuir treatment of adsorption,

Extent of adsorption is more than one complete monomolecular layer on the surface

Whole surface of the catalyst does not have the same activity for adsorption and there is attraction between the adsorbed molecule

All the adsorption does not take place by the same mechanism

Whole surface of the catalyst is essentially uniform and the adsorbed molecule has no effect on the rate of adsorption per site

Extent of adsorption is more than one complete monomolecular layer on the surface

Whole surface of the catalyst does not have the same activity for adsorption and there is attraction between the adsorbed molecule

All the adsorption does not take place by the same mechanism

Whole surface of the catalyst is essentially uniform and the adsorbed molecule has no effect on the rate of adsorption per site

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Chemical Reaction Engineering
Oil is hydrogenated using nickel catalyst in a __________ reactor.

Batch

Fluidised bed

Slurry

Fixed bed

Batch

Fluidised bed

Slurry

Fixed bed

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Chemical Reaction Engineering
Design of heterogeous catalytic reactor involves consideration of __________ steps.

Neither A nor B

Only chemical

Only physical

Both A & B

Neither A nor B

Only chemical

Only physical

Both A & B

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Chemical Reaction Engineering
For a first order isothermal chemical reaction in a porous catalyst, the effectiveness factor is 0.3. The effectiveness factor will increase if the

Catalyst size is increased or the catalyst diffusivity is reduced

Catalyst size is reduced or the catalyst diffusivity is reduced

Catalyst size is increased or the catalyst diffusivity is increased

Catalyst size is reduced or the catalyst diffusivity is increased

Catalyst size is increased or the catalyst diffusivity is reduced

Catalyst size is reduced or the catalyst diffusivity is reduced

Catalyst size is increased or the catalyst diffusivity is increased

Catalyst size is reduced or the catalyst diffusivity is increased

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Chemical Reaction Engineering
The value of 'n' for a chemical reaction A → B, whose reaction rate is → CAn, will be __________ if the rate of the reaction increases by a factor of 8, when the concentration of is doubled.

3

1

2

3

1

2

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Chemical Reaction Engineering

Chemical Reaction Engineering In Langmuir treatment of adsorption,

Chemical Reaction Engineering Oil is hydrogenated using nickel catalyst in a __________ reactor.

Chemical Reaction Engineering Design of heterogeous catalytic reactor involves consideration of __________ steps.

Chemical Reaction Engineering For a first order isothermal chemical reaction in a porous catalyst, the effectiveness factor is 0.3. The effectiveness factor will increase if the

Chemical Reaction Engineering The value of 'n' for a chemical reaction A → B, whose reaction rate is → CAn, will be __________ if the rate of the reaction increases by a factor of 8, when the concentration of is doubled.

Chemical Reaction Engineering
In Langmuir treatment of adsorption,

Chemical Reaction Engineering
Oil is hydrogenated using nickel catalyst in a __________ reactor.

Chemical Reaction Engineering
Design of heterogeous catalytic reactor involves consideration of __________ steps.

Chemical Reaction Engineering
For a first order isothermal chemical reaction in a porous catalyst, the effectiveness factor is 0.3. The effectiveness factor will increase if the

Chemical Reaction Engineering
The value of 'n' for a chemical reaction A → B, whose reaction rate is → CAn, will be __________ if the rate of the reaction increases by a factor of 8, when the concentration of is doubled.