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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 conversion XA and residence time data are collected for zero order liquid phase reaction in a stirred tank reactor. Which of the following will be a straight line?

XA Vs ln τ
XA Vs . τ
XA(1 - XA)Vs τ
XA/(1 - XA)Vs τ

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Chemical Reaction Engineering
With increase in temperature, the equilibrium conversion of a reversible exothermic reaction

Decreases linearily with temperature
Remains unaffected
Increases
Decreases

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Chemical Reaction Engineering
reactant and product streams). The amount of heat to be removed is

1kW
2/3 kW
5/3 kW
4kW

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Chemical Reaction Engineering
For a gaseous phase reaction, rate of reaction is equal to K. CA . CB. If the volume of the reactor is suddenly reduced to l/4th of its initial volume, then the rate of reaction compared to the original rate will be __________ times.

43838
43846
8
16

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Chemical Reaction Engineering
Which of the following factors control the deactivation of a porous catalyst pellet?

All of these
Form of surface attack by poison
Decay reactions
Pore diffusion

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