Chemical Engineering MCQs

A. Unsaturated surface
B. Constant rate
C. Both a. and b.
D. Neither a. nor b.

A. Rectification
B. Absorption
C. Ion-exchange
D. Adsorption

A. Increases with temperature rise
B. Decreases with temperature rise
C. Decreases with decrease in pressure
D. Increases with increase in pressure

A. Viscosity
B. Vapor pressure
C. Freezing point
D. All a., b. & c.

A. Means the amount of heat thrown away (kcal/hr.) by the cooling tower
B. Is equal to the number of kg, of water circulated times the cooling range
C. Both a. & b.
D. Neither a. nor b.

A. Dry bulb
B. Wet bulb
C. Dew point
D. None of these

A. Temperature is less
B. Total pressure is less
C. Mixing of steam with the material being vaporised is not so intimate as to result in equilibrium
ConDition

A. Pressure
B. Temperature
C. Both a. & b.
D. Neither a. nor b.

A. Degree of dispersion of one fluid in the other
B. Interfacial surface exposed between the phases
C. Both a. & b.
D. None of these

A. Phase change of the solute as it dissolves in the solvent
B. Diffusion of the solute through the solvent in the pores to the outside of the particle
C. Diffusion of the solute from the solution in contact with the particle to the main bulk of the
SolUtion