If the catalyst pore size is small in comparison with the mean free path, collisions with the pore wall controls the process'. The diffusivity under this condition is called 'Knudsen diffusivity', which is affected by the

Chemical Reaction Engineering
If the catalyst pore size is small in comparison with the mean free path, collisions with the pore wall controls the process'. The diffusivity under this condition is called 'Knudsen diffusivity', which is affected by the

Neither A nor B

Pressure

Temperature

Both A & B

Neither A nor B

Pressure

Temperature

Both A & B

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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

Proportional to the square of

Inversely proportional to

Proportional to

Independent of

Proportional to the square of

Inversely proportional to

Proportional to

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Chemical Reaction Engineering
A photochemical reaction is

Accompanied with emission of light

Catalysed by light

Initiated by light

All of these

Accompanied with emission of light

Catalysed by light

Initiated by light

All of these

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Chemical Reaction Engineering
Catalyst is a substance, which __________ chemical reaction.

Decreases the speed of a

Increases the speed of a

Can either increase or decrease the speed of a

Alters the value of equilibrium constant in a reversible

Decreases the speed of a

Increases the speed of a

Can either increase or decrease the speed of a

Alters the value of equilibrium constant in a reversible

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Chemical Reaction Engineering
Rate of a chemical reaction is not influenced by the

Temperature

Reactants concentration

Number of molecules of reactants taking part in a reaction

Catalyst

Temperature

Reactants concentration

Number of molecules of reactants taking part in a reaction

Catalyst

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Chemical Reaction Engineering
For a heterogenous catalytic reaction, A + B → C, with equimole feed of A and B, the initial rate - rA0 is invariant with total pressure. The rate controlling step is

Surface Kc/(1 + TS) reaction between absorbed A and B in the gas phase

Surface reaction between absorbed A and absorbed B

Surface reaction between A in the gas phase and absorbed B

Desorption of C

Surface Kc/(1 + TS) reaction between absorbed A and B in the gas phase

Surface reaction between absorbed A and absorbed B

Surface reaction between A in the gas phase and absorbed B

Desorption of C

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Chemical Reaction Engineering

Chemical Reaction Engineering If the catalyst pore size is small in comparison with the mean free path, collisions with the pore wall controls the process'. The diffusivity under this condition is called 'Knudsen diffusivity', which is affected by the

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 A photochemical reaction is

Chemical Reaction Engineering Catalyst is a substance, which __________ chemical reaction.

Chemical Reaction Engineering Rate of a chemical reaction is not influenced by the

Chemical Reaction Engineering For a heterogenous catalytic reaction, A + B → C, with equimole feed of A and B, the initial rate - rA0 is invariant with total pressure. The rate controlling step is

Chemical Reaction Engineering
If the catalyst pore size is small in comparison with the mean free path, collisions with the pore wall controls the process'. The diffusivity under this condition is called 'Knudsen diffusivity', which is affected by the

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
A photochemical reaction is

Chemical Reaction Engineering
Catalyst is a substance, which __________ chemical reaction.

Chemical Reaction Engineering
Rate of a chemical reaction is not influenced by the

Chemical Reaction Engineering
For a heterogenous catalytic reaction, A + B → C, with equimole feed of A and B, the initial rate - rA0 is invariant with total pressure. The rate controlling step is