The reaction A → B is conducted in an adiabatic plug flow reactor (PFR). Pure A at a concentration of 2 kmol/m³ is fed to the reactor at the rate of 0.01 m³ /s and at a temperature of 500 K. If the exit conversion is 20%, then the exit temperature (in k)is (Data: Heat of reaction at 298 K = - 50000 kJ/ kmole of A reacted Heat capacities CPA = CPB = 100kJ/kmole. K (may be assumed to be independent of temperature))

Chemical Reaction Engineering
The reaction A → B is conducted in an adiabatic plug flow reactor (PFR). Pure A at a concentration of 2 kmol/m³ is fed to the reactor at the rate of 0.01 m³ /s and at a temperature of 500 K. If the exit conversion is 20%, then the exit temperature (in k)is (Data: Heat of reaction at 298 K = - 50000 kJ/ kmole of A reacted Heat capacities CPA = CPB = 100kJ/kmole. K (may be assumed to be independent of temperature))

500

600

1000

400

500

600

1000

400

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Chemical Reaction Engineering
The space time is equivalent to the holding time in a steady state mixed reactor for

Non-isothermal gas reaction

Constant fluid density systems

Variable fluid density systems

Gas reactions with changing no. of moles

Non-isothermal gas reaction

Constant fluid density systems

Variable fluid density systems

Gas reactions with changing no. of moles

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Chemical Reaction Engineering
Half life period of a first order irreversible reaction A → B is

K/2

Ln 2/k

Ln 0.5/k

Ln k/2

K/2

Ln 2/k

Ln 0.5/k

Ln k/2

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Chemical Reaction Engineering
An imbalanced chemical reaction equation is against the law of

Constant proportion

None of these

Conservation of mass

Multiple proportion

Constant proportion

None of these

Conservation of mass

Multiple proportion

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Chemical Reaction Engineering
The heat of reaction

Depends on the mechanism of reaction only

Depends on the pressure only

Depends on both pressure and mechanism of reaction

Is independent of the mechanism of reaction

Depends on the mechanism of reaction only

Depends on the pressure only

Depends on both pressure and mechanism of reaction

Is independent of the mechanism of reaction

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Chemical Reaction Engineering
In a first order reaction, the time required to reduce the concentration of reactant from 1 mole/litre to 0.5 mole/litre will be __________ that required to reduce it from 10 moles/litre to 5 moles/litre in the same volume.

Less than

Data insufficient; can't be predicted

More than

Same as

Less than

Data insufficient; can't be predicted

More than

Same as

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Chemical Reaction Engineering

Chemical Reaction Engineering The space time is equivalent to the holding time in a steady state mixed reactor for

Chemical Reaction Engineering Half life period of a first order irreversible reaction A → B is

Chemical Reaction Engineering An imbalanced chemical reaction equation is against the law of

Chemical Reaction Engineering The heat of reaction

Chemical Reaction Engineering In a first order reaction, the time required to reduce the concentration of reactant from 1 mole/litre to 0.5 mole/litre will be __________ that required to reduce it from 10 moles/litre to 5 moles/litre in the same volume.

Chemical Reaction Engineering
The space time is equivalent to the holding time in a steady state mixed reactor for

Chemical Reaction Engineering
Half life period of a first order irreversible reaction A → B is

Chemical Reaction Engineering
An imbalanced chemical reaction equation is against the law of

Chemical Reaction Engineering
The heat of reaction

Chemical Reaction Engineering
In a first order reaction, the time required to reduce the concentration of reactant from 1 mole/litre to 0.5 mole/litre will be __________ that required to reduce it from 10 moles/litre to 5 moles/litre in the same volume.