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.)

Reactor dispersion number (D/vL)

None of these

Thiele modulus (L√(k/D1)

Reduced time (vt/V)

Reactor dispersion number (D/vL)

None of these

Thiele modulus (L√(k/D1)

Reduced time (vt/V)

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Chemical Reaction Engineering
With increase in temperature, the equilibrium __________ rises in case of endothermic reaction.

Neither A nor B

Conversion

Both A & B

Constant

Neither A nor B

Conversion

Both A & B

Constant

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Chemical Reaction Engineering
Half life period of a chemical reaction is

The time required to reduce the concentration of the reacting substance to half its initial value

Half of the space time of a reaction

None of these

Half of the residence time of a reaction

The time required to reduce the concentration of the reacting substance to half its initial value

Half of the space time of a reaction

None of these

Half of the residence time of a reaction

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Chemical Reaction Engineering
Recycling back of outlet stream to the reactor from an ideal CSTR carrying out a first order liquid phase reaction will result in __________ in conversion.

Either A or B, depends on the type of reaction

Decrease

Increase

No change

Either A or B, depends on the type of reaction

Decrease

Increase

No change

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Chemical Reaction Engineering
An endothermic second order reaction is carried out in an adiabatic plug flow reactor. The rate of heat generation is

Maximum at the inlet of the reactor

Maximum at the exit of the reactor

Maximum at the centre of the reactor

Constant throughout the reactor

Maximum at the inlet of the reactor

Maximum at the exit of the reactor

Maximum at the centre of the reactor

Constant throughout the reactor

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Chemical Reaction Engineering
As the chemical reaction proceeds, the rate of reaction

Decreases

Increases

Remains same

May increase or decrease depending on the type of reaction

Decreases

Increases

Remains same

May increase or decrease depending on the type of reaction

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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 With increase in temperature, the equilibrium __________ rises in case of endothermic reaction.

Chemical Reaction Engineering Half life period of a chemical reaction is

Chemical Reaction Engineering Recycling back of outlet stream to the reactor from an ideal CSTR carrying out a first order liquid phase reaction will result in __________ in conversion.

Chemical Reaction Engineering An endothermic second order reaction is carried out in an adiabatic plug flow reactor. The rate of heat generation is

Chemical Reaction Engineering As the chemical reaction proceeds, the rate of reaction

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
With increase in temperature, the equilibrium __________ rises in case of endothermic reaction.

Chemical Reaction Engineering
Half life period of a chemical reaction is

Chemical Reaction Engineering
Recycling back of outlet stream to the reactor from an ideal CSTR carrying out a first order liquid phase reaction will result in __________ in conversion.

Chemical Reaction Engineering
An endothermic second order reaction is carried out in an adiabatic plug flow reactor. The rate of heat generation is

Chemical Reaction Engineering
As the chemical reaction proceeds, the rate of reaction