Expt5 Wine Distillation F20 Potential Quiz Questions PDF

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CHEM 2020 F20

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CHEM 2020 Experiment 5 Wine Distillation Online Quiz [30 Marks] 1.

You will have to answer six of the following questions (fill in the blank format). [12 marks] a. b. c. d. e. f. g. h. i. j.

What is the purpose of a distillation? What is involved in the distillation process? What is the vapour pressure? How does the vapour pressure relate to temperature? What is the boiling point of a liquid? What is the problem with the formation of an azeotrope with a distillation? What is a fractioning column? How does a fractioning column work? How does a vacuum distillation work? How does a steam distillation work?

2. You will have to answer four of the following questions (multiple choice format). [8 marks] a. When is it most useful to use a simple distillation? b. If a mixture of two miscible liquids with different boiling points is heated to boiling, what can be said about the composition of the vapour? c. Consider two volatile liquids that do not interact, one with a boiling point of 40 0C (liquid A) and one with a boiling point of 120 0C (liquid B). If the distillation is set to 60 0C, what would be a correct statement regarding the composition of the vapour? d. When is it most useful to use a fractional distillation? e. When it is most useful to use a vacuum distillation? f. When is it most useful to use steam distillation? 3. One question pertaining to the lab report that is not included here. [10 Marks]...