2/3 kW
1kW
5/3 kW
4kW
✅ The correct answer is option C.
Chemical Reaction Engineering MCQs
Molecularity of a reaction
Is always equal to the overall order of reaction
May not be equal to the order of reaction
Can
Both B and C
✅ The correct answer is option D.
A batch reactor suffers from following disadvantage.
Poor product quality control
High labour and handling cost
High shutdown time requirement for emptying, cleaning and refilling
All of the above
✅ The correct answer is option D.
n’ number of plug flow reactors (P.F.R) in series with a total volume ‘V’ gives the same conversion as one P.F.R. of volume
V/n
V
V.n
1/V
✅ The correct answer is option B.
When all the limiting reactant is consumed in the reaction, the operational yield __________ the relative yield.
Is greater than
Is smaller than
Equals
Can be either greater or smaller than (depends on the type of reaction)
✅ The correct answer is option C.
A backmix reactor
Is same as plug-flow reactor
Is same as ideal stirred tank reactor
Employs mixing in axial direction only
Is most suitable for gas phase reaction
✅ The correct answer is option B.
For every 10°C rise in temperature, the rate of chemical reaction doubles. When the temperature is increased from 30 to 70°C, the rate of reaction increases __________ times.
8
12
16
32
✅ The correct answer is option C.
On application of pressure to the equilibrium system, ice ⇋ water; which of the following phenomenon will occur?
Water will evaporate
Equilibrium will not be attained
More ice will be formed
More water will be formed
✅ The correct answer is option D.
For an autocatalytic reactor, the suitable reactor set up is
P.F. reactors in series
CSTR in series
CSTR followed by P.F. reactor
P.F. reactor followed by CSTR
✅ The correct answer is option C.
Autocatalytic reactions are best carried out in a
CSTR
CSTR in series
Plug flow reactor
Recycle reactor
✅ The correct answer is option D.