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

3

6

44015

7

3

6

44015

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Chemical Reaction Engineering
Effectiveness factor (E) of a catalyst pellet is defined as, E = (actual rate within pore of catalyst/rate if notsnowed by pore diffusion) Effectiveness factor for a first order reaction is given by (where, T = Thiele modulus)

None of these

Tan T/T

Tan hT/T

Tan hT/tan T

None of these

Tan T/T

Tan hT/T

Tan hT/tan T

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Chemical Reaction Engineering
Space velocity

Is a measure of the ease of the reaction

Describes the extensive operating characteristics of a tubular flow reactor

All of these

Is the maximum feed rate pre unit volume of reactor for a given conversion

Is a measure of the ease of the reaction

Describes the extensive operating characteristics of a tubular flow reactor

All of these

Is the maximum feed rate pre unit volume of reactor for a given conversion

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Chemical Reaction Engineering
When all the limiting reactant is consumed in the reaction, the operational yield __________ the relative yield.

Equals

Is greater than

Is smaller than

Can be either greater or smaller than (depends on the type of reaction)

Equals

Is greater than

Is smaller than

Can be either greater or smaller than (depends on the type of reaction)

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Chemical Reaction Engineering
The catalytic converter for conversion of SO₂ to SO₃ by contact process should have a feed with SO₂ content between

2-5%

20-25%

12-15%

7-10%

2-5%

20-25%

12-15%

7-10%

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Chemical Reaction Engineering
B.E.T. method of finding out surface area of a catalyst, uses the extension of __________ isotherm.

None of these

Langmuir

Freundlich

Tempkin

None of these

Langmuir

Freundlich

Tempkin

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Chemical Reaction Engineering

Chemical Reaction Engineering Effectiveness factor (E) of a catalyst pellet is defined as, E = (actual rate within pore of catalyst/rate if notsnowed by pore diffusion) Effectiveness factor for a first order reaction is given by (where, T = Thiele modulus)

Chemical Reaction Engineering Space velocity

Chemical Reaction Engineering When all the limiting reactant is consumed in the reaction, the operational yield __________ the relative yield.

Chemical Reaction Engineering The catalytic converter for conversion of SO₂ to SO₃ by contact process should have a feed with SO₂ content between

Chemical Reaction Engineering B.E.T. method of finding out surface area of a catalyst, uses the extension of __________ isotherm.

Chemical Reaction Engineering
Effectiveness factor (E) of a catalyst pellet is defined as, E = (actual rate within pore of catalyst/rate if notsnowed by pore diffusion) Effectiveness factor for a first order reaction is given by (where, T = Thiele modulus)

Chemical Reaction Engineering
Space velocity

Chemical Reaction Engineering
When all the limiting reactant is consumed in the reaction, the operational yield __________ the relative yield.

Chemical Reaction Engineering
The catalytic converter for conversion of SO₂ to SO₃ by contact process should have a feed with SO₂ content between

Chemical Reaction Engineering
B.E.T. method of finding out surface area of a catalyst, uses the extension of __________ isotherm.