Which of the following is not a dimension-less group used in catalysis ? (where, D = dispersion co-efficient, cm² /sec.D1 = diffusion co-efficient; cm²/sec L = length of the reactor, cm t = time, sec, v = volumetric flow rate, cm³/sec . V = volume, cm³.)

Chemical Reaction Engineering
Which of the following is not a dimension-less group used in catalysis ? (where, D = dispersion co-efficient, cm² /sec.D1 = diffusion co-efficient; cm²/sec L = length of the reactor, cm t = time, sec, v = volumetric flow rate, cm³/sec . V = volume, cm³.)

None of these

Reactor dispersion number (D/vL)

Reduced time (vt/V)

Thiele modulus (L√(k/D1)

None of these

Reactor dispersion number (D/vL)

Reduced time (vt/V)

Thiele modulus (L√(k/D1)

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Chemical Reaction Engineering
The decomposition of A into B is represented by the exothermic reaction, A ⇋ 2B. To achieve maximum decomposition, it is desirable to carry out the reaction.

At high P and low T

At high P and high T

At low P and low T

At low P and high T

At high P and low T

At high P and high T

At low P and low T

At low P and high T

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Chemical Reaction Engineering
A gaseous reactant is introduced in a mixed reactor of 3 litres volume at the rate of 1 litre/second. The space time is __________ seconds.

32

43833

3

1

32

43833

3

1

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Chemical Reaction Engineering
The conversion XA and residence time data are collected for zero order liquid phase reaction in a stirred tank reactor. Which of the following will be a straight line?

XA Vs . τ

XA/(1 - XA)Vs τ

XA(1 - XA)Vs τ

XA Vs ln τ

XA Vs . τ

XA/(1 - XA)Vs τ

XA(1 - XA)Vs τ

XA Vs ln τ

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Chemical Reaction Engineering
An example of autothermal reactor operation is

Ethylene oxidation

Benzene oxidation

Sulphur dioxide oxidation

Ammonia synthesis

Ethylene oxidation

Benzene oxidation

Sulphur dioxide oxidation

Ammonia synthesis

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Chemical Reaction Engineering
A catalyst loses its activity due to

All of these

Agglomeration of metal particles caused by thermal sintering of the solid surface

Covering of the catalytic active sites by a foregin substance

Loss in surface area of the active component

All of these

Agglomeration of metal particles caused by thermal sintering of the solid surface

Covering of the catalytic active sites by a foregin substance

Loss in surface area of the active component

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Chemical Reaction Engineering

Chemical Reaction Engineering Which of the following is not a dimension-less group used in catalysis ? (where, D = dispersion co-efficient, cm² /sec.D1 = diffusion co-efficient; cm²/sec L = length of the reactor, cm t = time, sec, v = volumetric flow rate, cm³/sec . V = volume, cm³.)

Chemical Reaction Engineering The decomposition of A into B is represented by the exothermic reaction, A ⇋ 2B. To achieve maximum decomposition, it is desirable to carry out the reaction.

Chemical Reaction Engineering A gaseous reactant is introduced in a mixed reactor of 3 litres volume at the rate of 1 litre/second. The space time is __________ seconds.

Chemical Reaction Engineering The conversion XA and residence time data are collected for zero order liquid phase reaction in a stirred tank reactor. Which of the following will be a straight line?

Chemical Reaction Engineering An example of autothermal reactor operation is

Chemical Reaction Engineering A catalyst loses its activity due to

Chemical Reaction Engineering
Which of the following is not a dimension-less group used in catalysis ? (where, D = dispersion co-efficient, cm² /sec.D1 = diffusion co-efficient; cm²/sec L = length of the reactor, cm t = time, sec, v = volumetric flow rate, cm³/sec . V = volume, cm³.)

Chemical Reaction Engineering
The decomposition of A into B is represented by the exothermic reaction, A ⇋ 2B. To achieve maximum decomposition, it is desirable to carry out the reaction.

Chemical Reaction Engineering
A gaseous reactant is introduced in a mixed reactor of 3 litres volume at the rate of 1 litre/second. The space time is __________ seconds.

Chemical Reaction Engineering
The conversion XA and residence time data are collected for zero order liquid phase reaction in a stirred tank reactor. Which of the following will be a straight line?

Chemical Reaction Engineering
An example of autothermal reactor operation is

Chemical Reaction Engineering
A catalyst loses its activity due to