Mass Transfer

A. Bound
B. Unbound
C. Critical
D. None of these

A. Drum drier
B. Spray drier
C. Tunnel drier
D. Tray drier

A. Vapors and liquids are at their dew point and bubble point respectively
B. Driving force for the liquid flow is its specific weight
C. Driving force for the vapor flow is the pressure drop, as the pressure decreases gradually from
the bottom to the top of the column
D. Highest temperature is encountered at the top of the column

A. Directly proportional to ‘T1.5’
B. Inversely proportional to ‘P’
C. Dependent on the molecular volume & molecular weight of components
D. All A , B. & C.

A. Reboiler is not used in open steam distillation
B. The separation of solutes of different molecular sizes in a liquid solution by use of a suitable
membrane is called dialysis
C. Freeze drying is used for the drying of fish
D. Fenske-Underwood equation is used for calculating theoretical number of plates in a
distillation column at normal operating reflux condition

A. Electrical resistance
B. Thermal conductivity
C. Strength
D. None of these

A. Diffusion
B. Heat transfer
C. Both A. and B.
D. Neither A. nor B.

A. Toluene-benzene
B. Acetone-carbon disulphide
C. Water-isobutyl alcohol
D. None of these

A. Temperature
B. Vapour pressure of either component
C. Total pressure
D. None of these

A. Packed column
B. Sieve tray
C. Bubble cap
D. Any of these