Pick out the wrong statement about distillation operation__________________?
Correct answer: D. Flash distillation, differential distillation & steam distillation are all continuous distillation processes
- A. Distillation under vacuum is a substitute for steam distillation
- B. In differential (simple) distillation, the vapour is removed as soon as it is formed without appreciable condensation
- C. In flash (equilibrium) distillation, a definite fraction of liquid is vaporised in such a way that the evolved vapour & residual liquids are in equilibrium with each other
- D. Flash distillation, differential distillation & steam distillation are all continuous distillation processes
Explanation
Differential distillation is normally a batch operation, while flash distillation may be continuous and steam distillation may be operated continuously or batchwise. Therefore, describing all three as continuous is incorrect.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
Practise Mass Transfer Operations
669 free Mass Transfer Operations MCQs from Chemical Engineering, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Chemical Engineering questions like this
Chemical Engineering is on this paper prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for it.
More Mass Transfer Operations questions
Pick out the wrong statement about the design of a sieve plate column ?
Pick out the wrong statement pertaining to the use of valve tray, seive tray and bubble cap trays in continuous distillation column ?
Othmer chart is useful in estimating the heat of_______________?
Crystallisation of solids from a homogeneous solution is a/an ______________ process?
The type of liquor circulation system to be ' employed in evaporators (viz. natural or forced circulation) is determined mainly by the ______________ of the liquid?
In a backward feed multiple effect evaporator ___________________ ?