A. Dialysis
B. Electrodialysis
C. Diffusion
D. Ultra-filtration
Related Mcqs:
- The interfacial area per unit volume of dispersion, in a gas-liquid contactor, for fractional hold up of gas = 0.1 and gas bubble diameter = 0.5 mm is given by (in m2/m3) ?
A. 500
B. 1200
C. 900
D. 800 - Steady state equimolal counter diffusion is encountered in_____________________?
A. Separation of a binary mixture by distillation
B. Absorption of NH3 from air by water
C. All liquid-liquid diffusion systems
D. All liquid-solid diffusion systems - Leaching rate is independent of the________________?
A. Agitation
B. Temperature
C. Particle size
D. None of these - Packed column distillation is limited to the column _____________ metres?
A. Height < 6
B. Diameter < 0.6
C. Both A. & B.
D. Neither A. nor B. - The partial pressure distribution of an ideal gas diffusing through another stagnant ideal gas at steady state follows a/an _________________ law?
A. Exponential
B. Parabolic
C. Linear
D. Cubic - An aqueous solution of methanol is to be distilled in a tray column. High pressure steam is available as a source of heat. For a given reflux ratio and overhead composition, two options are being explored; (i) a reboiler is used and (ii) no reboiler is used but steam is fed directly to the bottom of the column. As compared to option (i), in option (ii) ____________________?
A. Less number of trays are required
B. Composition of the residue remains unchanged
C. More number of trays are required but the residue composition remains unchanged
D. More number of trays are required and the residue composition is more dilute in methanol - Moisture contained by a substance in excess of the equilibrium moisture is called the _______________ moisture?
A. Unbound
B. Free
C. Critical
D. Bound - Schmidt number and Lewis number for pure air at atmospheric conditions are respectively__________________?
A. < 1 and ≈ 1
B. 1 and 0
C. > 1 and ≈ 1
D. 0 and ≈ 1 - Which of the following assumes constant molal vaporisation and overflow ?
A. McCabe-Thiele method
B. Ponchan-Savarit method
C. Enthalpy concentration method
D. Plate absorption column - _______________ columns are used for liquid dispersion in a continuous gas phase ?
A. Packed
B. Pulse
C. Bubble cap
D. Sieve plate