Category: Mass Transfer

A. Raschig
B. Lessing
C. Cross-partition
D. Single spiral

A. 25
B. > 25
C. < 25
D. – 25

A. Same as “Van der Waals” adsorption
B. Characterised by adsorption of heat
C. An irreversible phenomenon
D. A reversible phenomenon

A. 6.89
B. 8.89
C. 10
D. 8.25

A. Better flow characteristics
B. Low pumping pressure drop
C. Rapid absorption rates
D. All A., B. and C.

A. Condenser and reboiler loads are the same in both the cases
B. Reboiler load is the same in both the cases but condenser load is higher in case (ii)
C. Condenser load is the same in both the cases but reboiler load is higher in case (ii)
D. Both condenser and reboiler loads are higher in case (ii) as compared to case (i)

A. Temperature and pressure
B. Concentration
C. Nature of the constituents
D. None of these

A. Across
B. Above
C. Both A. & B.
D. Neither A. nor B.

A. Tunnel
B. Tray
C. Rotary
D. None of these

A. Anthracite coal
B. Rag paper
C. Bamboo
D. Inorganic solids