Overall rate of reaction in a heterogenous catalytic reaction depends upon the mass and energy transfer from the fluid to solid surface and its rate of reaction is usually __________ the concentration of catalyst, if it does not entail a chain mechanism.

Chemical Reaction Engineering
Overall rate of reaction in a heterogenous catalytic reaction depends upon the mass and energy transfer from the fluid to solid surface and its rate of reaction is usually __________ the concentration of catalyst, if it does not entail a chain mechanism.

Independent of

Inversely proportional to

Proportional to

Proportional to the square of

Independent of

Inversely proportional to

Proportional to

Proportional to the square of

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Chemical Reaction Engineering
For the non-catalytic reaction of particles with surrounding fluid, the time needed to achieve the same fractional conversion for particles of different but unchanging sizes is proportional to the square of particle diameter, when the __________ is the controlling resistance.

Either A, B or C

Chemical reaction

Film diffusion

Diffusion through ash layer

Either A, B or C

Chemical reaction

Film diffusion

Diffusion through ash layer

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Chemical Reaction Engineering
What is the value of 'n' if the reaction rate of the chemical reaction A → B, is proportional to CAn and it is found that the reaction rate triples, when the concentration of 'A' is increased 9 times ?

3

1/3

1/9

1/2

3

1/3

1/9

1/2

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Chemical Reaction Engineering
Participation of __________ is involved in the occurrence of a chemical reaction.

Protons

Neutrons

None of these

Electrons

Protons

Neutrons

None of these

Electrons

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Chemical Reaction Engineering
The rate of the heterogenous catalytic reaction A(g) + B(g) ? C(g) is given by -rA = k.KA.pA.PB/(1 + KA.PA + Kc.pc), where KA and Kc are the adsorption equilibrium constants. The rate controlling step for this reaction isA. absorption of A.

Absorption of A

Surface reaction between A in the gas phase and absorbed B

Surface reaction between absorbed A and absorbed B

Surface reaction between absorbed A and B in the gas phase

Absorption of A

Surface reaction between A in the gas phase and absorbed B

Surface reaction between absorbed A and absorbed B

Surface reaction between absorbed A and B in the gas phase

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Chemical Reaction Engineering
The reaction A → B is conducted in an isothermal batch reactor. If the conversion of A increases linearly with holding time, then the order of the reaction is

2

0

1

1.5

2

0

1

1.5

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Chemical Reaction Engineering

Chemical Reaction Engineering Overall rate of reaction in a heterogenous catalytic reaction depends upon the mass and energy transfer from the fluid to solid surface and its rate of reaction is usually __________ the concentration of catalyst, if it does not entail a chain mechanism.

Chemical Reaction Engineering What is the value of 'n' if the reaction rate of the chemical reaction A → B, is proportional to CAn and it is found that the reaction rate triples, when the concentration of 'A' is increased 9 times ?

Chemical Reaction Engineering Participation of __________ is involved in the occurrence of a chemical reaction.

Chemical Reaction Engineering The rate of the heterogenous catalytic reaction A(g) + B(g) ? C(g) is given by -rA = k.KA.pA.PB/(1 + KA.PA + Kc.pc), where KA and Kc are the adsorption equilibrium constants. The rate controlling step for this reaction isA. absorption of A.

Chemical Reaction Engineering The reaction A → B is conducted in an isothermal batch reactor. If the conversion of A increases linearly with holding time, then the order of the reaction is

Chemical Reaction Engineering
Overall rate of reaction in a heterogenous catalytic reaction depends upon the mass and energy transfer from the fluid to solid surface and its rate of reaction is usually __________ the concentration of catalyst, if it does not entail a chain mechanism.

Chemical Reaction Engineering
What is the value of 'n' if the reaction rate of the chemical reaction A → B, is proportional to CAn and it is found that the reaction rate triples, when the concentration of 'A' is increased 9 times ?

Chemical Reaction Engineering
Participation of __________ is involved in the occurrence of a chemical reaction.

Chemical Reaction Engineering
The rate of the heterogenous catalytic reaction A(g) + B(g) ? C(g) is given by -rA = k.KA.pA.PB/(1 + KA.PA + Kc.pc), where KA and Kc are the adsorption equilibrium constants. The rate controlling step for this reaction isA. absorption of A.

Chemical Reaction Engineering
The reaction A → B is conducted in an isothermal batch reactor. If the conversion of A increases linearly with holding time, then the order of the reaction is