Chemical Reaction Engineering
The equilibrium constant of chemical reaction __________ in the presence of catalyst.

Remains unaffected
Increases
Decreases
Can either increase or decrease (depends on the type of catalyst)

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Chemical Reaction Engineering
In a zero order reaction, reactants concentration does not change with time and the

Time for completion of the reaction is independent of the initial concentration
Time for half change is independent of the initial concentration
Time for half change is half the time taken for completion of the reaction
Reaction rate is trebled when the initial concentration is trebled

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Chemical Reaction Engineering
Pick the WRONG design guideline for a reactor in which the reactions, A → R (desired) and A → S (undesired) are to take place. The ratio of the reaction rates is rR/rS = (k₁/k₂).Csub>Aa-b

Use batch reactor or plug flow reactor, when a > b
Avoid recycle, when a > b
Use CSTR with a high conversion, when a > b
Use high pressure and eliminate inerts, when a > b

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