Backmix reactor
Plug flow reactor
Series of CSTR
PFR in series
✅ The correct answer is option A.
Chemical Reaction Engineering MCQs
The experimentally determined overall order of the reaction, A + B → C + D, is two. Then the
Reaction is elementary with a molecularity of 2
Molecularity of the reaction is 2, but the reaction may not be elementary
Reaction may be elementary with molecularity of 2
Reaction is elementary but the molecularity may not be 2
✅ The correct answer is option A.
BET apparatus is used to determine the
Specific surface of a porous catalyst
Pore size distribution
Pore diameter
Porosity of the catalyst bed
✅ The correct answer is option A.
Rate of a chemical reaction is independent of the concentration of the reactants for a __________ reaction.
Zero order
Third order
Consecutive
None of these
✅ The correct answer is option A.
For a heterogeneous catalytic reaction
Free energy of activation is lowered in the presence of catalyst, which remains unchanged at the end of reaction
A relatively small amount of catalyst can cause the conversion of large amount of reactants which does not mean that catalyst concentration is important
The catalyst does not form an intermediate complex with the reactant
The surface of the catalyst does not play an important role during reaction
✅ The correct answer is option A.
A Catalyst
Increases the equilibrium concentration of the product
Changes the equilibrium constant of the reaction
Shortens the time to reach the equilibrium
None of these
✅ The correct answer is option C.
When a catalyst increases the rate of chemical reaction, the rate constant
Decreases
Increases
Remains constant
Becomes infinite
✅ The correct answer is option B.
For any reaction, we may write conversion as a function of
Time
Temperature
Concentration
All of the above
✅ The correct answer is option D.
The knowledge of initial concentration and rate constant is necessary to determine the half life time of a reaction of __________ order.
Zero
First
Second
None of these
✅ The correct answer is option C.