- (A) Rectification
- (B) Absorption
- (C) Ion-exchange
- (D) Adsorption
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- (A) L/mG
- (B) G/mL
- (C) mL/G
- (D) LG/m
- (A) Zero
- (B) Unity
- (C) Infinity
- (D) None of these
- (A) Constant molal overflow
- (B) Total reflux
- (C) Constant relative volatility
- (D) All
- (A) Is of low volatility
- (B) Forms a low boiling azeotrope
- (C) Forms a high boiling azeotrope
- (D) Does not alter the relative volatility of the original components
- (A) Slope of the operating line in stripping section decreases
- (B) Number of plates decreases very slowly first and then more and more rapidly
- (C) Total cost first decreases and then increases
- (D) Liquid flow increases while the vapor flow decreases for a system
- (A) Evaporation
- (B) Blowdown
- (C) Entrainment
- (D) All
- (A) Have low weight per unit volume
- (B) Have large surface area per unit volume
- (C) Have large free cross-section
- (D) Hold up large amount of liquid in the packing
- (A) Greater than that computed for ideality
- (B) Less than that computed for ideality
- (C) Less than the sum of the vapour pressure of the components
- (D) None of these
- (A) Stanton number
- (B) Peclet number
- (C) Thermal diffusivity
- (D) Momentum diffusivity
