Q. Guess the exact relation between the vapour phase mole fraction and relative volatility.

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Q. Given the total pressure is 2 atm. Also the partial pressure of the two components in an ideal solution is 1 atm and 0.5 atm. It shows __________ deviation.

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Q. If the vapour pressure of the two components in a binary mixture is same, then it is a________

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Q. Minimum boiling azeotrope has_________

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Q. Alternative word of Azeotrope is a Differential-boiling point.

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Q. Negative deviation is due to a total pressure less than the pressure obtained from Hendry’s law.

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Q. Azeotropic composition can be eliminated by

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Q. When the two liquid mixtures are completely insoluble then the total pressure of the mixture is

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Q. Consider an insoluble mixture A and B; Find the Total pressure of the system.

Vapour pressure of A= 50mmHg
Vapour pressure of B= 100 mmHg

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Q. Ordinary distillation cannot separate Azeotrope.

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Q. Flash vaporization is a

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Q. The feed is directly passed to the flash vaporization column

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Q. Binary mixture of 100 kmol/hr enters into a flash drum has equimolar composition. The distillate obtained is 60 kmol/hr and the enthalpy of distillate, residue and feed are 500 KJ/kmol, 200 KJ/kmol and 400 KJ/kmol. Find the bottom flow rate in kmol/hr.

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Q. Find the ratio of distillate to residual flow rates, if a binary mixture containing 65% of more volatile component while the distillate and the residue compositions are 90% and 30%.

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Q. What happens to the liquid after preheating when enter to the cyclonic flash drum?

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Q. Express the flash vaporization

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Q. Find the heat given( in KJ) to the feed for the flash vaporization process if the ratio of residue to the distillate is 0.65 and the enthalpy of feed, distillate and the residue are 500, 800 and 200 KJ/kmol respectively. The feed rate is 100 kmol/hr.

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Q. Find the distillate and the residue rates in mole/hr, if the feed rate is 100 mol/hr; The compositions of feed, distillate and residue in terms of mole fraction are 0.65, 0.9 and 0.2.

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Q. Large number of flash distillation equals a differential distillation.

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Q. The column used for differential distillation is_______________

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