Category: Mass Transfer

A. Are different
B. Are same
C. Depend on the humidity of the gas
D. None of these

A. Momentum flux
B. Kinematic viscosity
C. Thermal diffusivity
D. Both B. and C.

A. Absorption factor is constant, when the equilibrium and operating lines are straight
B. In case of a stripper, the equilibrium curve is always below the operating line
C. In case of an absorber, the operating line is always above the equilibrium curve
D. In the absorption of low solubility gases, the liquid film is the controlling resistance

A. Added to alter the relative volatility of the mixture
B. Of high volatility
C. Present in overhead stream
D. Of high viscosity to give high tray efficiency

A. Increases with increase in
B. Is one at unity value of
C. Both A. and B.
D. Neither A. nor B.

A. Size of component molecules are not equal
B. Attractive forces between like and unlike molecules in the solution are approximately equal
C. Component molecules are non-polar
D. Chemical combination or molecular association between unlike molecules takes place in the
formation of solution

A. All liquid solutions
B. Non-ideal solution only
C. Non-volatile solute
D. Solvents

A. That of normal condensation
B. Integral heat of adsorption
C. Zero
D. None of these

A. Transfer of molecules from low concentration to high concentration region
B. Thermal energy of the molecules
C. Activation energy of the molecules
D. Potential energy of the molecules

A. 1
B. 0
C. 2
D. 3