Recovery of tannis from the tree barks and woods
Leaching sodium nitrate from Chilean nitrate bearing rock
Both A & B
Neither A nor B
✅ The correct answer is option C.
Chemical Engineering MCQs
A trickle bed reactor is the one, which
Has altogether three streams either entering or leaving
Processes three reactants at different flow rates
Processes three reactants with same flow rate
Employs all the three phases (i.e.. .solid, liquid and gas)
✅ The correct answer is option D.
The diffusivity, DAB (for component A diffusing in B) is equal to the diffusivity Dsub>BA (for component B diffusing in A) for a binary mixture of
Newtonion liquids
Non-Newtonion liquids
Ideal gases
Real gases
✅ The correct answer is option C.
For an ideal mixed flow reactor (CSTR), the exit age distribution E(t) is given by
A dirac delta function
A step function
A ramp function
None of the above
✅ The correct answer is option D.
Organic catalysts differ from the inorganic catalyst in the sense that the former is
Active at cryogenic temperatures only
Prohibitively costly
Proteinous in nature
Active at very high temperature only
✅ The correct answer is option C.
For all positive reaction orders for a particular duty,
Mixed reactor is always larger than the plug-flow reactor
Ratio of the volume of the mixed reactor to that of the plug-flow reactor decreases with order
Reactor size is independent of the type of flow
Density variation during reaction affects design
✅ The correct answer is option A.
Half life period of decomposition of a liquid ‘A’ by irreversible first order reaction is 12 minutes. The time required for 75% conversion of ‘A’ is __________ minutes.
18
24
6
12
✅ The correct answer is option B.
Find a mechanism that is consistent with the rate equation and reaction given below: 2A + B → A₂B, ( – rA) = k.CA.CB
A + B ⇋ AB ; AB + A → A2B
A + B → AB ; AB + A → A2B
A + A → AA ; AA + B → A2B
A + A ⇋ AA ; AA + B → A2B
✅ The correct answer is option D.
Conversion increases with increase in temperature in case of a an __________ reaction.
Autocatalytic
Irreversible
Reversible endothermic
Reversible exothermic
✅ The correct answer is option C.
The rate constant of a first order reaction depends on the
Concentration of the reactant
Temperature
Concentration of the product
Time
✅ The correct answer is option B.