Chemical Reaction Engineering
Recycling back of outlet stream to the reactor from an ideal CSTR carrying out a first order liquid phase reaction will result in __________ in conversion.

Decrease
Either A or B, depends on the type of reaction
Increase
No change

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Chemical Reaction Engineering
For a first order isothermal chemical reaction in a porous catalyst, the effectiveness factor is 0.3. The effectiveness factor will increase if the

Catalyst size is reduced or the catalyst diffusivity is increased
Catalyst size is reduced or the catalyst diffusivity is reduced
Catalyst size is increased or the catalyst diffusivity is reduced
Catalyst size is increased or the catalyst diffusivity is increased

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Chemical Reaction Engineering
An endothermic aqueous phase first order irreversible reaction is carried out in an adiabatic plug flow reactor. The rate of reaction

Goes through a minimum along the length of the reactor
Is maximum at the exit of the reactor
Is maximum at the inlet of the reactor
Goes through a maximum along the length of the reactor

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