Lies below the equilibrium line
Lies above the equilibrium line
And equilibrium lines are parallel
Is far from the equilibrium line
✅ The correct answer is option C.
Mass Transfer MCQs
Moisture in a substance exerting an equilibrium vapour pressure less than that of pure liquid at the same temperature is called the __________ moisture.
Bound
Unbound
Critical
None of these
✅ The correct answer is option A.
In the constant rate period of the rate of drying curve for batch drying,
Cracks develop on the surface of the solid
Rate of drying decreases abruptly
Surface evaporation of unbound moisture occurs
None of these
✅ The correct answer is option C.
All moisture in a non-hygroscopic material is the __________ moisture.
Free
Equilibrium
Unbound
Bound
✅ The correct answer is option C.
The reciprocal of stripping factor is termed as
Selectivity index
Relative volatility
Absorption factor
Murphree efficiency
✅ The correct answer is option C.
For ethanol-water system, the lowering of distillate quality from 95% to 92% will cause __________ plate requirement.
No change in theoretical
Marginal decrease in the number of
Major decrease in the number of
None of these
✅ The correct answer is option B.
Dry bulb temperature of the gas is __________ the wet bulb temperature.
Less than
More than
Equal to
None of these
✅ The correct answer is option B.
Degree of freedom for leaching and solvent extraction process is
1
3
0
2
✅ The correct answer is option B.
The mass diffusivity, the thermal diffusivity and the eddy momentum diffusivity are same for, NPr = NSc = __________
1
0.5
10
0
✅ The correct answer is option A.
The film penetration model of mass transfer was enunciated by
Gilliland
Toor and Marchello
Stefan
Fick
✅ The correct answer is option B.