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 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.

Surface reaction between absorbed A and absorbed B

Surface reaction between A in the gas phase and absorbed B

Surface reaction between absorbed A and B in the gas phase

Absorption of A

Surface reaction between absorbed A and absorbed B

Surface reaction between A in the gas phase and absorbed B

Surface reaction between absorbed A and B in the gas phase

Absorption of A

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Chemical Reaction Engineering
A catalyst loses its activity due to

Loss in surface area of the active component

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

All of these

Covering of the catalytic active sites by a foregin substance

Loss in surface area of the active component

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

All of these

Covering of the catalytic active sites by a foregin substance

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Chemical Reaction Engineering
For a zero order reaction, the concentration of product increases with the

Decrease in total pressure

Total pressure

Increase in initial concentration

Increase of reaction time

Decrease in total pressure

Total pressure

Increase in initial concentration

Increase of reaction time

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Chemical Reaction Engineering
The heat of reaction

Depends on the mechanism of reaction only

Is independent of the mechanism of reaction

Depends on the pressure only

Depends on both pressure and mechanism of reaction

Depends on the mechanism of reaction only

Is independent of the mechanism of reaction

Depends on the pressure only

Depends on both pressure and mechanism of reaction

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Chemical Reaction Engineering
In which of the following gaseous phase reactions, the equilibrium of the reaction remains unaffacted by pressure changes ?

2O? ? 3O?

2NO? ? N?O?

2SO? + O? ? 2SO?

N? + O? ? 2NO

2O? ? 3O?

2NO? ? N?O?

2SO? + O? ? 2SO?

N? + O? ? 2NO

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Chemical Reaction Engineering
Space time equals the mean residence time

For large diameter tubular reactor

When the density of the reaction mixture is constant

For narrow diameter tubular reactor

For CSTR

For large diameter tubular reactor

When the density of the reaction mixture is constant

For narrow diameter tubular reactor

For CSTR

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Chemical Reaction Engineering

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 A catalyst loses its activity due to

Chemical Reaction Engineering For a zero order reaction, the concentration of product increases with the

Chemical Reaction Engineering The heat of reaction

Chemical Reaction Engineering In which of the following gaseous phase reactions, the equilibrium of the reaction remains unaffacted by pressure changes ?

Chemical Reaction Engineering Space time equals the mean residence time

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
A catalyst loses its activity due to

Chemical Reaction Engineering
For a zero order reaction, the concentration of product increases with the

Chemical Reaction Engineering
The heat of reaction

Chemical Reaction Engineering
In which of the following gaseous phase reactions, the equilibrium of the reaction remains unaffacted by pressure changes ?

Chemical Reaction Engineering
Space time equals the mean residence time