The response curve for a step input signal from a reactor is called C-curve. The variance of C-curve in a 'tanks in series model' comprising of 'm' tanks is equal to

Chemical Reaction Engineering
The response curve for a step input signal from a reactor is called C-curve. The variance of C-curve in a 'tanks in series model' comprising of 'm' tanks is equal to

1/m

m²

m

√m

1/m

m²

m

√m

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Chemical Reaction Engineering
For identical flow rate, feed composition and for elementary first order reactions, 'N' equal sized mixed reactors in series with a total volume 'V' gives the same conversion as a single plug flow reactor of volume 'V' for constant density systems. This is true, when the value of 'N' is

≥1

>1

∞

1

≥1

>1

∞

1

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Chemical Reaction Engineering
If n = overall order of a chemical reaction. a = initial concentration of reactant. t = time required to complete a definite fraction of the reaction. Then pick out the correct relationship.

T ∝ an

T ∝ 1/an + 1

T ∝ 1/an

T ∝ 1/an - 1

T ∝ an

T ∝ 1/an + 1

T ∝ 1/an

T ∝ 1/an - 1

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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
For a first order chemical reaction in a porous catalyst, the Thiele modulus is 10. The effectiveness factor is approximately equal to

1

0.1

0.5

1

0.1

0.5

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Chemical Reaction Engineering
The irreversible reaction is a special case of reversible reaction, if the

Reactant concentration at equilibrium condition is zero

Equilibrium constant is 1

Conversion of the reactant at equilibrium condition is zero

All of these

Reactant concentration at equilibrium condition is zero

Equilibrium constant is 1

Conversion of the reactant at equilibrium condition is zero

All of these

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Chemical Reaction Engineering

Chemical Reaction Engineering The response curve for a step input signal from a reactor is called C-curve. The variance of C-curve in a 'tanks in series model' comprising of 'm' tanks is equal to

Chemical Reaction Engineering If n = overall order of a chemical reaction. a = initial concentration of reactant. t = time required to complete a definite fraction of the reaction. Then pick out the correct relationship.

Chemical Reaction Engineering For a first order chemical reaction in a porous catalyst, the Thiele modulus is 10. The effectiveness factor is approximately equal to

Chemical Reaction Engineering The irreversible reaction is a special case of reversible reaction, if the

Chemical Reaction Engineering
The response curve for a step input signal from a reactor is called C-curve. The variance of C-curve in a 'tanks in series model' comprising of 'm' tanks is equal to

Chemical Reaction Engineering
If n = overall order of a chemical reaction. a = initial concentration of reactant. t = time required to complete a definite fraction of the reaction. Then pick out the correct relationship.

Chemical Reaction Engineering
For a first order chemical reaction in a porous catalyst, the Thiele modulus is 10. The effectiveness factor is approximately equal to

Chemical Reaction Engineering
The irreversible reaction is a special case of reversible reaction, if the