Which of the following is the optimum operating condition for an exothermic reversible reaction taking place in a plug-flow reactor?

Chemical Reaction Engineering
Which of the following is the optimum operating condition for an exothermic reversible reaction taking place in a plug-flow reactor?

Very low temperature should be used throughout the reaction

Very high temperature should be used throughout the reaction

None of these

Temperature should be high in the beginning and decreased towards the end of the reaction

Very low temperature should be used throughout the reaction

Very high temperature should be used throughout the reaction

None of these

Temperature should be high in the beginning and decreased towards the end of the reaction

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Chemical Reaction Engineering
The size of plug flow reactor (PFR) for all positive reaction orders and for any given duty, is __________ that of mixed reactor.

Greater than

Unpredictable from the data

Smaller than

Equal to

Greater than

Unpredictable from the data

Smaller than

Equal to

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Chemical Reaction Engineering
In a zero order reaction, reactants concentration does not change with time and the

Time for half change is half the time taken for completion of the reaction

Reaction rate is trebled when the initial concentration is trebled

Time for half change is independent of the initial concentration

Time for completion of the reaction is independent of the initial concentration

Time for half change is half the time taken for completion of the reaction

Reaction rate is trebled when the initial concentration is trebled

Time for half change is independent of the initial concentration

Time for completion of the reaction is independent of the initial concentration

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Chemical Reaction Engineering
For an ideal mixed flow reactor (CSTR), the exit age distribution E(t) is given by

A dirac delta function

None of these

A ramp function

A step function

A dirac delta function

None of these

A ramp function

A step function

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Chemical Reaction Engineering
A chemical reaction occurs when the energy of the reacting molecules is __________ the activation energy of the reaction.

More than

Equal to or more than

Equal to

Less than

More than

Equal to or more than

Equal to

Less than

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Chemical Reaction Engineering
The conversion for a first order liquid phase reaction. A → B in a CSTR is 50%. If another CSTR of the same volume is connected in series, then the % conversion at the exit of the second reactor will be

75

60

100

90

75

60

100

90

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Chemical Reaction Engineering

Chemical Reaction Engineering Which of the following is the optimum operating condition for an exothermic reversible reaction taking place in a plug-flow reactor?

Chemical Reaction Engineering The size of plug flow reactor (PFR) for all positive reaction orders and for any given duty, is __________ that of mixed reactor.

Chemical Reaction Engineering In a zero order reaction, reactants concentration does not change with time and the

Chemical Reaction Engineering For an ideal mixed flow reactor (CSTR), the exit age distribution E(t) is given by

Chemical Reaction Engineering A chemical reaction occurs when the energy of the reacting molecules is __________ the activation energy of the reaction.

Chemical Reaction Engineering The conversion for a first order liquid phase reaction. A → B in a CSTR is 50%. If another CSTR of the same volume is connected in series, then the % conversion at the exit of the second reactor will be

Chemical Reaction Engineering
Which of the following is the optimum operating condition for an exothermic reversible reaction taking place in a plug-flow reactor?

Chemical Reaction Engineering
The size of plug flow reactor (PFR) for all positive reaction orders and for any given duty, is __________ that of mixed reactor.

Chemical Reaction Engineering
In a zero order reaction, reactants concentration does not change with time and the

Chemical Reaction Engineering
For an ideal mixed flow reactor (CSTR), the exit age distribution E(t) is given by

Chemical Reaction Engineering
A chemical reaction occurs when the energy of the reacting molecules is __________ the activation energy of the reaction.

Chemical Reaction Engineering
The conversion for a first order liquid phase reaction. A → B in a CSTR is 50%. If another CSTR of the same volume is connected in series, then the % conversion at the exit of the second reactor will be