A. Less than
B. More than
C. Equal to
D. None of these
A. Moles transferred/ [(time) (area) (mole fraction)]
B. Moles transferred/ [(time) (area) (mass A/mass B)]
C. Moles transferred/ [(time) (area) (pressure)]
D. None of these
A. 1
B. ∞
C. 0.5
D. 2
A. High pressure
B. Low pressure
C. Extractive
D. Steam
A. Increases tray efficiency
B. Decreases tray efficiency
C. Reduces pressure drop
D. Is desirable, as it provides improved vapour-liquid contact
A. Cracks develop on the surface of the solid
B. Rate of drying decreases abruptly
C. Surface evaporation of unbound moisture occurs
D. None of these
A. 0 to 0.5
B. 0 to 3
C. 1.25 to 2
D. 5 to 15
A. Isothermal operation
B. Dilute solutions
C. Dilute solutions and isothermal operation
D. None of these
A. Is a static bed leaching equipment
B. Is used for extraction of oil from oilseed
C. Is a centrifugal extractor
D. Employs only counter-current extraction
A. Solvent of low latent heat of vaporisation should be used
B. Solvent of low freezing point should be used
C. Large quantity of solvent is required to extract the solute
D. Very small quantity of solvent is required