Chemical Reaction Engineering
A reversible liquid phase endothermic reaction is to be carried out in a plug flow reactor. For minimum reactor volume, it should be operated such that the temperature along the length

Decreases
First increases and then decreases
Is at the highest allowable temperature throughout
Increases

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Chemical Reaction Engineering
In solid catalysed reactions the diffusional effects are more likely to affect the overall rate of reaction for

Slow reactions in catalyst of small pore diameter
Fast reaction in catalyst of large pore diameter
Slow reactions in catalyst of large pore diameter
Fast reactions in catalyst of small pore diameter

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Chemical Reaction Engineering
Rate constant for a first order reaction does not depend upon reaction time, extent of reaction and the initial concentration of reactants ; but it is a function of reaction temperature. In a chemical reaction, the time required to reduce the concentration of reactant from 100 gm moles/litre to 50 gm moles/litre is same as that required to reduce it from 2 gm moles/litre to 1 gm mole/litre in the same volume. Then the order of this reaction is

3
0
1
2

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