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

3

6

7

44015

3

6

7

44015

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Chemical Reaction Engineering
The reaction A → B is conducted in an isothermal batch reactor. If the conversion of A increases linearly with holding time, then the order of the reaction is

0

2

1.5

1

0

2

1.5

1

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Chemical Reaction Engineering
The conversion in a mixed reactor/accomplishing a reaction A 3R is 50% when gaseous reactant 'A' is introduced at the rate of 1 litre/second and the leaving flow rate is 2 litres/second. The holding time for this operation is __________ second.

1

3

0.5

2

1

3

0.5

2

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Chemical Reaction Engineering
Rate constant 'k' and absolute temperature 'T' are related by collision theory (for bimolecular) as

k ∝ √T

k ∝ exp(-E/RT)

k ∝ T

k ∝ T1.5

k ∝ √T

k ∝ exp(-E/RT)

k ∝ T

k ∝ T1.5

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Chemical Reaction Engineering
What is the dispersion number for a plug flow reactor?

1

?

-1

1

?

-1

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Chemical Reaction Engineering
With an increase in pressure in gaseous phase chemical reactions, the fractional conversion __________ when the number of moles decreases.

Decreases

Remains unaffected

Unpredictable from the data

Increases

Decreases

Remains unaffected

Unpredictable from the data

Increases

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Chemical Reaction Engineering

Chemical Reaction Engineering The reaction A → B is conducted in an isothermal batch reactor. If the conversion of A increases linearly with holding time, then the order of the reaction is

Chemical Reaction Engineering The conversion in a mixed reactor/accomplishing a reaction A 3R is 50% when gaseous reactant 'A' is introduced at the rate of 1 litre/second and the leaving flow rate is 2 litres/second. The holding time for this operation is __________ second.

Chemical Reaction Engineering Rate constant 'k' and absolute temperature 'T' are related by collision theory (for bimolecular) as

Chemical Reaction Engineering What is the dispersion number for a plug flow reactor?

Chemical Reaction Engineering With an increase in pressure in gaseous phase chemical reactions, the fractional conversion __________ when the number of moles decreases.

Chemical Reaction Engineering
The reaction A → B is conducted in an isothermal batch reactor. If the conversion of A increases linearly with holding time, then the order of the reaction is

Chemical Reaction Engineering
The conversion in a mixed reactor/accomplishing a reaction A 3R is 50% when gaseous reactant 'A' is introduced at the rate of 1 litre/second and the leaving flow rate is 2 litres/second. The holding time for this operation is __________ second.

Chemical Reaction Engineering
Rate constant 'k' and absolute temperature 'T' are related by collision theory (for bimolecular) as

Chemical Reaction Engineering
What is the dispersion number for a plug flow reactor?

Chemical Reaction Engineering
With an increase in pressure in gaseous phase chemical reactions, the fractional conversion __________ when the number of moles decreases.