• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

Demonstrate an understanding of the theory, principles and practice of separation of liquid mixtures by distillation techniques

Extracts from this document...


Faculty: Technology Assign/Activity Code: 306/01 Course Title: C&G 0603 - Process Technology Instructions for the use of this cover sheet (1) A cover sheet is required for every activity including presentations (2) Please complete all sections below (3) Staple the cover sheet to your activity Student name: Billy Whelton Unit(s): LEVEL 3 Unit 306: Distillation in the Process Industry Assignment/ Activity title: 01 - Distillation techniques Hand out date: 15-10-2007 Hand in date: 10-12-2007 Graded (Y/N) N Resubmission date for referred work: 17-12-07 Student's comment on activity (if applicable): Student's Signature: ................................................ Date: ................. Assessment Grading Decision (by Assessor). Assessment decision following Verification. Activity designed by Assessed & graded by Key Skills Assessed by Name: Geoff Martin Name: Date: 28-06-05 Date: Internally Moderated by Internally Verified by Name: Name: Date: Date: You must store all marked activities in a portfolio (folder) for External Verification during the academic year. Grading descriptors PASS You have successfully completed all tasks and submitted all evidence as stated. Task Comments Pass Criteria Met Yes/No ALL All areas covered to a good level showing evidence of research and understanding YES Grading Comments Overall Grade P/R P Hand in date for referred work .................. Outcome 1: Demonstrate an understanding of the theory, principles and practice of separation of liquid mixtures by distillation techniques 1. ...read more.


http://www.chemistry.mcmaster.ca/~chem2o6/labmanual/expt3/exp3-int.html c immiscible liquid mixtures. In the case when two immiscible liquids are sealed in a container, the vapour pressure that is measured is only the pressure of the liquid that is floating on top of the other. If the two liquids are agitated, the vapour pressure and the boiling point of the liquid mixture will be lower than that of both the two liquids. 5. state and explain Dalton's law of partial pressures. Dalton's Law of Partial Pressure: The pressure of a mixture of gases is equal to the sum of the pressures of all of the constituent gases alone. Mathematically, this can be represented as: PressureTotal = Pressure1 + Pressure2 ... Pressuren This basically says that the total pressure is the same as the sum of each individual component pressure. 6. state and explain how Raoult's law can be used to calculate the total vapour pressure of ideal binary liquid mixtures. Raoult's Law states that: The vapour pressure of a solution of a non-volatile solute is equal to the vapour pressure of the pure solvent at that temperature multiplied by its mole fraction. It can be used to calculate the total vapour pressure of an ideal binary liquid mixture as using the mathematical equation, derived from the number of different liquids involved and their concentrations. ...read more.


Azeotropic distillation incorporates the use of an entrainer, or solvent, to help facilitate the distillation process. This is to lower the boiling point of the azeotrope that is contained in the solution so that full distillation can occur. If this entrainer were not present, then the maximum level of distillation that would be possible would be up to approximately 96% which is not pure enough for certain processes. f steam Steam distillation is used when temperature sensitive materials are involved in the distillation process. The steam is used to lower the boiling points of the compounds involved in the process due to temperature sensitive, organic compounds decomposing and breaking down at high, sustained temperatures. If the temperatures are still too high, this process can also be combined with vacuum distillation. g vacuum Vacuum distillation lowers the pressure in the top of the tower, thus reducing the vapour pressure and lowering the boiling point of the fluids contained. This makes evaporation of the components with a very high boiling point easier, producing more saleable product. h pressure. Pressure distillation is another term for vacuum distillation. [D1]a liquid's tendency to evaporate increases with rising temperatures [D2]pressure of a vapour where the air in the surrounding atmosphere is saturated [D3]the partial pressure of each gas in a mixture of gases is the pressure it would have if it occupied the same volume on its own [D4]found by totalling the partial pressures of each ideal gas in a mixture of gases ?? ?? ?? ?? Vocational Assignment ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our AS and A Level Physical Chemistry section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related AS and A Level Physical Chemistry essays

  1. Free essay

    Determining an Equilibrium constant

    It is because the theoretical value of the equilibrium constant is calculated from standard conditions and therefore cannot be wholly compared with the value obtained from the room temperature and air pressure present in the laboratory. Since equilibrium constant is temperature-dependent.

  2. The principles of colorimetry - testing the composition of a paperclip

    Set aside a sample of this solution to use in the colorimeter. 2. Take two burettes and fill one with water and the other with 2.0% Mn solution. Make up 20cm3 samples of solutions to correspond to 1%, 0.8%, 0.6%, 0.4% and 0.2% solutions by using suitable volumes from the two burettes.

  1. Science at Work Research . Dulux Paints, a Hospital, a leisure centre and a ...

    They deal with all accidents and emergency's ranging from a sprain up to a breakage of a bone. Although this may seem like no science is involved there is. Biology is mainly used because its deals with the human body.

  2. Modern materials - Two important modern materials, liquid crystals and nanotubes, are discussed

    When light passes through the polarizer, it will be polarized in the direction allowed by the polarizer. Without the presence of cholesteric (twisted nematic) liquid crystals in between the polarizer and the analyser, the polarized light will be completely absorbed by the analyser.

  1. Investigating the Rate of the Reaction between Bromide and Bromate Ions in Acid Solution

    In my opinion, the greatest source of error in my experiment will have come from the judgement of the point of the colour change. This was totally down to human judgement, so was completely subjective. It relied upon memory, since the colour of the reacting mixture continued to change colour

  2. Experiment to demonstrate the effects of buffers on ph changes.

    Materials and Methods: Materials: Beakers, distilled water, sodium chloride, solid sodium acetate, acetic acid, stirring rod, hydrochloric acid, pipette, pH meter, magnetic stirrer, spin bar, sodium hydroxide Methods: 1. The preparation of the Buffer Solution Ten 100 ml beakers are labelled as 1 to 10.

  1. Experiments to examine dynamic equilibrium and Le Chateliers principle

    Its appearance is recorded. Several drops of concentrated hydrochloric acid (HCl) is added to this solution. Your observations are recorded. ________________ 1. The Iron (III) Thiocyanate Ion Equilibrium 2 mL of 0.1 M iron (III) chloride (FeCl) solution and 2 mL of 0.1 M potassium thiocyanate (KSCN)

  2. Producing Aspirin By Vacuum Filtration

    As these intermolecular bonds weaken, it takes less energy to pull the molecules apart, which means it will melt to a liquid at a lower temperature. Conclusion- in my conclusion I saw that my aspirin had less impurities compared to the commercial aspirin, the commercial aspirin showed more dots, this

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work