15, 10, 5
5, 10, 15
10, 5, 15
10, 15, 5
✅ The correct answer is option A.
Chemical Reaction Engineering MCQs
For a first order reaction carried out in a plug flow reactor, the space time is
1/K In C0/C
1/K In C/C0
K In C0/C
K In C/C0
✅ The correct answer is option A.
If the pore diffusion controls in a catalytic reaction, the apparent activation energy Ea is equal to
The intrinsic activation energy E
(E + ED) where ED is activation due to diffusion
(E + ED)/2
ED/2
✅ The correct answer is option D.
An endothermic second order reaction is carried out in an adiabatic plug flow reactor. The rate of heat generation is
Maximum at the inlet of the reactor
Maximum at the exit of the reactor
Maximum at the centre of the reactor
Constant throughout the reactor
✅ The correct answer is option A.
In which of the following reactions, thee-quilibrium will shift to the right, if the total pressure is increased?
H₂ + Cl₂ ⇋ 2HCl
N₂ + O₂ ⇋ 2NO
N₂O₄ ⇋ 2 NO₂
H₂ + I₂ ⇋ 2HI
✅ The correct answer is option B.
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 reduced or the catalyst diffusivity is reduced
Catalyst size is reduced or the catalyst diffusivity is increased
Catalyst size is increased or the catalyst diffusivity is reduced
Catalyst size is increased or the catalyst diffusivity is increased
✅ The correct answer is option B.
What is the dispersion number for a plug flow reactor?
0
?
1
-1
✅ The correct answer is option A.
An isothermal irreversible reaction is being carried out in an ideal tubular flow reactor. The conversion in this case will __________ with decrease in space time.
Increase
Increase exponentially
Decrease
Remain unchanged
✅ The correct answer is option C.
What is the order of a chemical reaction whose rate is deter-mined by the variation of one concentration term only?
Zero
First
Second
Third
✅ The correct answer is option B.