256
512
112
612
✅ The correct answer is option B.
Chemical Engineering MCQs
The single parameter model proposed for describing non-ideal flow is the __________ model.
Tank in series
Dispersion
Both A & B
Neither A nor B
✅ The correct answer is option C.
Design of heterogeous catalytic reactor involves consideration of __________ steps.
Only chemical
Only physical
Both A & B
Neither A nor B
✅ The correct answer is option C.
A second order reaction of the form A + B → C is called a pseudo-first order reaction, when
CA0 = CB0
CA0 > CB0
CB0 > CA0
CB0 ≥ CB0
✅ The correct answer is option D.
The reactions with low activation energy are
Always spantaneous
Slow
Fast
Non-spontaneous
✅ The correct answer is option C.
The reaction rate almost gets doubled for 10°C rise in temperature. This is due to the fact that the
Increased temperature reduces the activation energy
Fraction of molecules having threshold energy increases
Collision frequency increases
Value of threshold energy decreases
✅ The correct answer is option B.
Integral method for analysing the kinetic data is used
When the data are scattered
For testing specific mechanisms with simple rate expressions
Both A and B
None of these
✅ The correct answer is option C.
__________ resistance is not involved in the combustion of a carbon particle.
Gas film
Ash
Chemical reaction
None of these
✅ The correct answer is option B.
For a homogeneous reaction of nth order, the dimension of the rate constant is given by
L/(time)n
(concentration)1 – n/(time)
(concentration)n – 1/(time)
None of these
✅ The correct answer is option B.
Bulk diffusion in catalyst pore __________ with increase in pressure.
Increases
Decreases
Remains unchanged
Increases exponentially
✅ The correct answer is option B.