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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
< 0.5
0

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Chemical Reaction Engineering
Enzymes (a protein) are catalysts found in organisms. Its efficiency of catalysing a reaction is due to its capacity to lower the activation energy of the reaction. The enzyme ptyalin used for food digestion is present in

Intestine
Blood
Saliva
Gland

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Chemical Reaction Engineering
The dimensions of rate constant for reaction 3A → B are (l/gm mole)/min. Therefore the reaction order is

1
2
3

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Chemical Reaction Engineering
What is the value of 'n' if the reaction rate of the chemical reaction A → B, is proportional to CAn and it is found that the reaction rate triples, when the concentration of 'A' is increased 9 times ?

3
1/3
1/9
1/2

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Chemical Reaction Engineering
Ionic reactions occur in

Liquid state only
Any state
Solutions
Solid state only

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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

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