A. Only vapor phase follows Raoult’s law
B. Only liquid phase obeys Dalton’s law
C. Liquid phase obeys Dalton’s law and vapor phase obeys Raoult’s law
D. Vapor phase obeys Dalton’s law and liquid phase obeys Raoult’s law
Related Mcqs:
- The-relative volatility for separation of a non-ideal binary mixture by distillation should be ___________________?
A. 0
B. 1
C. > 1
D. < 1 - The relative volatility of a binary mixture at constant temperature _________________ the total pressure?
A. Decreases with increase in
B. Increases with increase in
C. Is independent of
D. None of these - According to the Fenske equation, what will be the minimum number of plates required in a distillation column to separate an equimolar binary mixture of components A and B into an overhead fraction containing 99 mol% A and a bottom fraction containing 98 mol% B ? Assume that relative volatility (αAB = 2) does not change appreciably in the column ?
A. 5
B. 9
C. 12
D. 28 - The relative volatility of a binary mixture at the Azeotropic composition is _______________________?
A. 1
B. > 1
C. 0
D. ∞ - For a binary mixture with low relative volatility, continuous rectification to get pure products will require_____________________?
A. Low reflux ratio
B. Less number of trays
C. Small cross-section column
D. High reflux ratio - In case of an ideal solution, the total vapor pressure varies ______________ with the composition expressed as mole fraction?
A. Inversely
B. Linearly
C. Exponentially
D. None of these - When the liquid phase and vapour phase of a binary system obeys Raoult’s and Dalton’s law respectively, the relative volatility is the ratio of________________________?
A. Vapour pressure of component A to that of component B
B. Vapour pressure of component A to the total pressure
C. Vapour pressure of component A to the partial pressure of A
D. Partial pressure of component A to the total pressure - With increase in pressure, the relative volatility for a binary system__________________?
A. Increases
B. Decreases
C. Remains same
D. Either A. or B., depends on the system - With increase in pressure, the relative volatility for a binary system_________________?
A. Increases
B. Decreases
C. Remains same
D. Either A. or B., depends on the system - The diffusivity, DAB (for component A diffusing in B) is equal to the diffusivity DBA (for component B diffusing in A) for a binary mixture of________________?
A. Newtonian liquids
B. Non-Newtonian liquids
C. Ideal gases
D. Real gases
