A. Continuous
B. Steam
C. Differential
D. Flash
Related Mcqs:
- Rayleigh equation applies to _________________ distillation ?
A. Differential
B. Flash
C. Equilibrium
D. Molecular - Rayleigh’s equation applies to ________________ distillation?
A. Continuous
B. Steam
C. Differential
D. Flash - _______________ equation applies to diffusivities in liquids?
A. Gilliland
B. Hirschfelder
C. Wilke and Chang
D. None of these - Freundlich equation applies to the adsorption of solute from___________________?
A. Dilute solutions, over a small concentration range
B. Gaseous solutions at high pressure
C. Concentrated solutions
D. None of these - Freundlich equation applies to the adsorption of solute from_____________________?
A. Dilute solutions, over a small concentration range
B. Gaseous solutions at high pressure
C. Concentrated solutions
D. None of these - Polar organic compounds are normally used as separating agents for the azeotropic and extractive distillation. Which of the following is the most important factor to be considered for the choice of the separating agent for extractive distillation ?
A. Cost
B. Availability
C. Toxicity
D. Selectivity - 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 - At __________________ reflux, theoretical number of plates in a distillation coloumn is calculated using Fenske-Underwood equation?
A. Operating
B. Total
C. Minimum
D. Maximum permissible - Fenske equation for determining the minimum number of theoretical stages in distillation column holds good, when the_________________?
A. Relative volatility is reasonably constant
B. Mixture (to be separated) shows negative deviation from ideality
C. Mixture (to be separated) shows positive deviation from ideality
D. Multi-component distillation is involved - Fenske-Underwood equation used for calculating the minimum number of theoretical plates in distillation column is valid for_________________?
A. Constant molal overflow
B. Total reflux
C. Constant relative volatility
D. All A., B. and C.
