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Chemical Reaction Engineering

Chemical Reaction Engineering
If Thiele modulus is __________ , then the pore diffusion resistance in a catalyst may be considered as negligible.

∞
> 0.5
0
< 0.5

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Chemical Reaction Engineering
The rate constant of a chemical reaction decreases by decreasing the

Concentration of reactants
Temperature
Pressure
Duration of reaction

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

None of these
Protons
Neutrons
Electrons

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Chemical Reaction Engineering
The response curve for a step input signal from a reactor is called C-curve. The variance of C-curve in a 'tanks in series model' comprising of 'm' tanks is equal to

√m
1/m
m
m²

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Chemical Reaction Engineering
Enzymes are destroyed, when the

Temperature is very high
Reactant's concentration is very low
Reactant's concentration is very high
Reaction rate is independent of the reactant's concentration

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

Alters the value of equilibrium constant in a reversible
Can either increase or decrease the speed of a
Increases the speed of a
Decreases the speed of a

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