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 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

Surface reaction between absorbed A and absorbed B

Surface reaction between A in the gas phase and absorbed B

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Chemical Reaction Engineering
Knudsen diffusion is directly proportional to

T

√T

T₂

1/√T

T

√T

T₂

1/√T

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Chemical Reaction Engineering
__________ gas is normally employed in B.E.T.method of finding out the surface area of catalyst.

He

CO₂

N₂

H₂

He

CO₂

N₂

H₂

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Chemical Reaction Engineering
A catalyst in a chemical reaction

Decreases the activation energy

Increases the frequency of collisions of reacting species

All of these

Alters the reaction mechanism

Decreases the activation energy

Increases the frequency of collisions of reacting species

All of these

Alters the reaction mechanism

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Chemical Reaction Engineering
Batch process is preferred over continuous process, when the

Product yields and quality can not be achieved in continuous process, because of long residence time

Same equipment can not be used for several processes of the same nature

Sales demand of product is not steady

All of these

Product yields and quality can not be achieved in continuous process, because of long residence time

Same equipment can not be used for several processes of the same nature

Sales demand of product is not steady

All of these

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Chemical Reaction Engineering
The excess energy of the reactants required to dissociate into products is known as the __________ energy.

Threshold

Binding

Activation

Thermal

Threshold

Binding

Activation

Thermal

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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 Knudsen diffusion is directly proportional to

Chemical Reaction Engineering __________ gas is normally employed in B.E.T.method of finding out the surface area of catalyst.

Chemical Reaction Engineering A catalyst in a chemical reaction

Chemical Reaction Engineering Batch process is preferred over continuous process, when the

Chemical Reaction Engineering The excess energy of the reactants required to dissociate into products is known as the __________ energy.

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
Knudsen diffusion is directly proportional to

Chemical Reaction Engineering
__________ gas is normally employed in B.E.T.method of finding out the surface area of catalyst.

Chemical Reaction Engineering
A catalyst in a chemical reaction

Chemical Reaction Engineering
Batch process is preferred over continuous process, when the

Chemical Reaction Engineering
The excess energy of the reactants required to dissociate into products is known as the __________ energy.