Active mass
Molecular weight
Equivalent weight
Atomic weight
✅ The correct answer is option A.
Chemical Engineering MCQs
The time needed to achieve the same fractional conversion for particles of different sizes (d) when chemical reaction controls, is proportional to
D
√d
D1.5
D2
✅ The correct answer is option A.
What is the value of ‘n’ if the reaction rate of the chemical reaction A → B, is proportional to CAn and it is found that the reaction rate triples, when the concentration of ‘A’ is increased 9 times ?
1-Feb
1-Mar
1-Sep
3
✅ The correct answer is option A.
With increase in the space time of an irreversible isothermal reaction being carried out in a P.F. reactor, the conversion will
Increase
Decrease
Remain same
Data in insufficient; can’t be predicted
✅ The correct answer is option A.
A typical example of an exothermic reversible reaction conducted at high pressure in industry is
Dehydration of ethanol
Methanol synthesis
Reformation of methane
Polymerisation of ethylene
✅ The correct answer is option A.
For a fluidised bed reactor, the most suitable/relevant model is a __________ model.
Tank in series
Bubbling bed
Plug flow
None of these
✅ The correct answer is option B.
The eddy diffusivity for a liquid in plug flow must be
1
0
∞
Between 0 and 1
✅ The correct answer is option B.
The recovery of pencillin from the acidified fermentation broth is done by
Distillation
Evaporation
Absorption
Liquid extraction
✅ The correct answer is option D.
At a given temperature, K₁, K₂ and K3 are equilibrium constants for the following reactions 1, 2, 3 respectively. CH₄(g) + H₂O(g) ⇋ CO(g) + 3H₂(g), CO(g) + H₂O(g) ⇋ CO₂(g) + H₂(g) CH₄(g) + 2H₂O(g) ⇋ CO₂(g) + 4H₂(g) Then K₁, K₂ and K3 are related as:
K3 = K₁.K₂
K3 = (K₁.K₂)0.5
K3(K₁+K₂)/2
K3 = (K₁.K₂)2
✅ The correct answer is option A.
A photochemical reaction is __________ light.
Initiated by
Accompanied with emission of
Catalysed by
Used to convert heat energy into
✅ The correct answer is option A.