A. Mole fractions
B. Mole ratios
C. Partial pressure
D. Mass fractions
A. The product composition but not the fraction vaporised
B. The product composition as well as the fraction vaporised
C. The fraction vaporised but not the product composition
D. Neither the product composition nor the fraction vaporised
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
D. All A , B. & C.
The rate of solid-liquid extraction is limited by the_________________? Read More »
Mass Transfer 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
The rate of mass transfer is not dependent upon the______________________? Read More »
Mass Transfer A. Pressure
B. Temperature
C. Both A. & B.
D. Neither A. nor B.
Gaseous diffusion co-efficient increases with increase in the_____________________? Read More »
Mass Transfer 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
D. Saturated steam is used for steam distillation
A. Dry bulb
B. Wet bulb
C. Dew point
D. None of these
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.
Heat load in a cooling tower______________________? Read More »
Mass Transfer A. Viscosity
B. Vapor pressure
C. Freezing point
D. All A., B. & C.
A good solvent used for absorption should not have very high____________________? Read More »
Mass Transfer A. Increases with temperature rise
B. Decreases with temperature rise
C. Decreases with decrease in pressure
D. Increases with increase in pressure
Dew point of a gas-vapour mixture_____________________? Read More »
Mass Transfer