1
> 1
< 1
0
✅ The correct answer is option B.
Chemical Engineering MCQs
With increase in absolute humidity, the dew point of an unsaturated mixture of air and water vapor (at constant pressure and temperature)
Increases
Remains unchanged
Decreases
Decreases linearly
✅ The correct answer is option A.
Humid volume, at a given temperature is a/an __________ function of humidity.
Inverse
Exponential
Linear
Logarithmic
✅ The correct answer is option C.
Chemisorption (chemical adsorption) is
Same as “Van der Waals” adsorption
Characterised by adsorption of heat
An irreversible phenomenon
A reversible phenomenon
✅ The correct answer is option C.
In a single stage extraction process, 10 kg of pure solvent S (containing no solute A) is mixed with 30 kg of feed F containing A at a mass fraction xf = 0.2. The mixture splits into an extract phase E and a raf-finate phase R containing A at xB = 0.5 and xR = 0.05 respectively. The total mass of the extract phase is (in Kg)
6.89
8.89
10
8.25
✅ The correct answer is option B.
Which of the following is the most commonly used leaching solvent in vegetable oil industry?
Phenol
Hexane
Furfurol
Liquid SO₂
✅ The correct answer is option B.
The dimension of diffusivity is same as that of the
Density
Molal concentration
Kinematic viscosity
Velocity head
✅ The correct answer is option C.
If the overall efficiency and Murphree plate efficiency are equal, then both the equilibrium and operating lines are
Straight
Parallel
Both A & B
Neither A nor B
✅ The correct answer is option C.
Steady state temperature reached by a small amount of liquid evaporating into a large amount of unsaturated vapour-gas mixture is called the __________ temperature.
Dry-bulb
Wet-bulb
Dew point
Adiabatic saturation
✅ The correct answer is option B.
Pore size of the molecular seive 5A is __________ mm.
5
0.5
0.05
50
✅ The correct answer is option B.