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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
With increase in temperature, the equilibrium __________ rises in case of endothermic reaction.

Both A & B
Constant
Conversion
Neither A nor B

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Chemical Reaction Engineering
The dispersion number of perfect mixed flow is

< 2100
> 150
∞

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Chemical Reaction Engineering
A catalyst in a chemical reaction __________ free energy change in the reaction.

Decreases
Neither A nor B
Either A or B; depends on the type of catalyst
Increases

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Chemical Reaction Engineering
For the liquid phase parallel reactions:R, rR = K?.CA2; E? = 80 KJ/moleS, rS = K?.CA ; E? = 120 KJ/mole The desired product is R. A higher selectivity of R will be achieved, if the reaction is conducted at

High temperature in a PFR
Low temperature in a PFR
Low temperature in a CSTR
High temperature in a CSTR

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Chemical Reaction Engineering
A multiple reaction may be classified as a __________ reaction.

Mixed
Consecutive or side
All of these
Parallel or side

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