Lack of intraparticle diffusion resistance
Presence of two mobile phases
Both A and B
Neither A nor B
✅ The correct answer is option C.
Chemical Engineering MCQs
Velocity of a chemical reaction
Decreases with increase in temperature
Increases with increase of pressure of reactants for all reactions
Decreases with increase of reactant concentration
None of these
✅ The correct answer is option D.
Participation of __________ is involved in the occurrence of a chemical reaction.
Protons
Neutrons
Electrons
None of these
✅ The correct answer is option C.
Carbon particles accummulated on the catalyst used in the gas oil cracking lies in the category of __________ poison.
Deposited
Chemisorbed
Selectivity
Stability
✅ The correct answer is option A.
For a tubular flow reactor with uniform concentration and temperature, the independent variable is
Time
Length
Diameter
None of these
✅ The correct answer is option B.
Molecularity of an elementary reaction, P + Q → R + S is
1
2
3
4
✅ The correct answer is option D.
In an ideal P.F.R. at steady state conditions
The composition of reactants remains constant along a flow path
The conversion of the reactant varies from point to point along a flow path
There is no lateral mixing of fluid
There may be diffusion along the flow path
✅ The correct answer is option B.
If the time required to change the concentration of reactant to half its original value is independent of the initial concentration, the order of reaction is
Zero
One
Two
Three
✅ The correct answer is option B.
In case of a P.F.R., there
May be lateral mixing of fluid
Should not be any mixing along the flow path
Both A and B
Neither A nor B
✅ The correct answer is option C.
For reaction, P + 2 → 3R, molar rate of consumption of P is
Double of that of Q
Same as that of Q
Half of that of Q
2/3rd of that of Q
✅ The correct answer is option C.