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

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Chemical Reaction Engineering
For all positive reaction orders for a particular duty,

Mixed reactor is always larger than the plug-flow reactor
Ratio of the volume of the mixed reactor to that of the plug-flow reactor decreases with order
Density variation during reaction affects design
Reactor size is independent of the type of flow

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Chemical Reaction Engineering
A first order irreversible reaction, A → B is carried out separately in a constant volume as well as in a variable volume reactor for a particular period. It signifies that __________ in the two reactors.

Both conversion as well as concentration are same
Conversion in both will be the same but concentrations will be different
Both the conversion as well as concentrations will be different
None of these

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