A catalyst is said to be a negative catalyst, ifit

Chemical Reaction Engineering
A catalyst is said to be a negative catalyst, ifit

Retards the rate of reaction

Reduces the value of equilibrium constant

Does not initiate the reaction

All of these

Retards the rate of reaction

Reduces the value of equilibrium constant

Does not initiate the reaction

All of these

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Chemical Reaction Engineering
When the reaction is dominated by in-traparticle diffusion, the apparent order of reaction (nD) as measured is related to the true order (n) as

None of these

ND = n/2

ND = (n + 1)/2

ND = n + 1

None of these

ND = n/2

ND = (n + 1)/2

ND = n + 1

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Chemical Reaction Engineering
Velocity of a chemical reaction

Decreases with increase in temperature

None of these

Increases with increase of pressure of reactants for all reactions

Decreases with increase of reactant concentration

Decreases with increase in temperature

None of these

Increases with increase of pressure of reactants for all reactions

Decreases with increase of reactant concentration

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Chemical Reaction Engineering
Pick out the wrong statement pertaining to space velocity of flow reactors.

None of these

The space velocity of 3 hr⁻¹ means that three reactor volumes of feed at specified conditions are being fed into the reactor every hour

The unit of space velocity is (time)⁻¹

The space velocity of 3 hr⁻¹ means that one third reactor volume of feed at specified conditions are being fed into the reactor

None of these

The space velocity of 3 hr⁻¹ means that three reactor volumes of feed at specified conditions are being fed into the reactor every hour

The unit of space velocity is (time)⁻¹

The space velocity of 3 hr⁻¹ means that one third reactor volume of feed at specified conditions are being fed into the reactor

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Chemical Reaction Engineering
For a heterogeneous catalytic reaction

The catalyst does not form an intermediate complex with the reactant

The surface of the catalyst does not play an important role during reaction

Free energy of activation is lowered in the presence of catalyst, which remains unchanged at the end of reaction

A relatively small amount of catalyst can cause the conversion of large amount of reactants which does not mean that catalyst concentration is important

The catalyst does not form an intermediate complex with the reactant

The surface of the catalyst does not play an important role during reaction

Free energy of activation is lowered in the presence of catalyst, which remains unchanged at the end of reaction

A relatively small amount of catalyst can cause the conversion of large amount of reactants which does not mean that catalyst concentration is important

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Chemical Reaction Engineering
The conversion in a mixed reactor/accomplishing a reaction A 3R is 50% when gaseous reactant 'A' is introduced at the rate of 1 litre/second and the leaving flow rate is 2 litres/second. The holding time for this operation is __________ second.

1

3

2

0.5

1

3

2

0.5

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Chemical Reaction Engineering

Chemical Reaction Engineering A catalyst is said to be a negative catalyst, ifit

Chemical Reaction Engineering When the reaction is dominated by in-traparticle diffusion, the apparent order of reaction (nD) as measured is related to the true order (n) as

Chemical Reaction Engineering Velocity of a chemical reaction

Chemical Reaction Engineering Pick out the wrong statement pertaining to space velocity of flow reactors.

Chemical Reaction Engineering For a heterogeneous catalytic reaction

Chemical Reaction Engineering The conversion in a mixed reactor/accomplishing a reaction A 3R is 50% when gaseous reactant 'A' is introduced at the rate of 1 litre/second and the leaving flow rate is 2 litres/second. The holding time for this operation is __________ second.

Chemical Reaction Engineering
A catalyst is said to be a negative catalyst, ifit

Chemical Reaction Engineering
When the reaction is dominated by in-traparticle diffusion, the apparent order of reaction (nD) as measured is related to the true order (n) as

Chemical Reaction Engineering
Velocity of a chemical reaction

Chemical Reaction Engineering
Pick out the wrong statement pertaining to space velocity of flow reactors.

Chemical Reaction Engineering
For a heterogeneous catalytic reaction

Chemical Reaction Engineering
The conversion in a mixed reactor/accomplishing a reaction A 3R is 50% when gaseous reactant 'A' is introduced at the rate of 1 litre/second and the leaving flow rate is 2 litres/second. The holding time for this operation is __________ second.