Mass Transfer

Azeotropic mixture is
A. More
B. Less
C. Same
D. Either more or less; depends on the system

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