differ by at least 40 to 50 degrees Celsius. Because the very essence of simple distillation is relies upon the idea that more volatile compounds have lower boiling points and thus when heated to this boiling point will occupy most if not all of the vapor above the liquid pot residue. Because the difference in boiling point for the compounds in a mixed liquid must at least differ by 40 to 50 degrees Celsius in order for purification through Simple Distillation‚ this procedure should not result in a
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handwriting on an A4 paper. Due Date of Submission on 30th November 2011‚ before 2.00 PM. Late submissions will not be entertained. 1. A 1.8-m rigid tank contains steam at 220°C. One third of the volume is in the liquid phase and the rest is in the vapor form. Determine (a) the pressure of the steam‚ (b) the quality of the saturated mixture‚ and (c) the density of the mixture. 3 2. A piston–cylinder device contains 0.85 kg of refrigerant-134a at 10°C. The piston that is free to move has a mass
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initiated by gradually heating the mixture until it reaches the temperature of the liquid with the lower boiling point. This liquid then turns into a vapor and leaves to mixture and is collected by the set up apparatus. In fractional distillation a vigreux column is used. This provides for surface area for condensation to occur. At each condensation event the vapor is enriched in the low boiling point component and the liquid is enriched in the high boiling point component. The surfaces where condensation
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simulating the experience of smoking. The vapor created is inhaled and exhaled much like cigarette smoke hence the term ‘VAPING’ as opposed to ‘SMOKING’”. This needs to become a block Vaping has been around for 40 years‚ but it didn’t take off until the father of the inventor (Hon Lik) passed away from smoking- induced lung cancer. He encourages people to start vaping when they are trying to stop smoking cigarettes or are looking for an alternate way to smoke. The vapors in the e-cigarettes have smaller
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COLLIGATIVE PROPERTIES 1. Calculate the vapor pressure when 10.o mL glycerol (C3H8O3) is added to 500.0 mL water at 500C. At this temperature the vapor pressure of pure water is 92.5 torr and its density is 0.988 g/mL. Density of glycerol is 1.26 g/mL. 2. Calculate the boiling point and freezing point of the solution if 1.00 kg of ethylene glycol (C2H6O2) is added to a car radiator which contains 4450 g water. a. Kb of water = 0.512 oC/m at normal boiling point of 100oC b. Kf of water
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distillation‚ which under goes a series of evaporation and condensation process to purify more complex mixtures. Raoult and Dalton Law are the two principles involving with this experiment. The former states that the vapor pressure of a solvent above a solution is equal to the vapor pressure of the pure solvent at the same temperature scaled by the mole fraction of the solvent present. While the latter states that the total pressure of a gas in a container is the sum of the partial pressures of the
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Paragraph on Water Water is a precondition of life. Besides various uses of water‚ it is mainly used in irrigation as India is an agricultural country. Water is a renewable resource. Life is impossible without water. Its uses are limitless whether it is in home or in fields or in industries. We get water mainly from rain‚ rivers‚ wells‚ ponds and lakes. Sea-water is almost useless for domestic or industrial purposes. India is said to be a Monsoon country. But the distribution of Monsoon rainfall
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No Smoking in non-smoking designated areas In discussions of smoking electronic-cigarettes‚ or e-cigs‚ in designated smoking areas‚ one controversial issue has been that the vapor coming from the e-cigs does not cause damage to a person’s health. On the other hand‚ the vapor coming from the e-cigs contends quite an overwhelming amount of damage to a person’s health. Others even maintain that smoking e-cigs help people with a smoking problem stop smoking. My own view is that‚ although e-cigs help
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Automobile Emissions Control Abstract - The Automobile emissions control focus on the different types of technologies that have been introducing from early 1960’s to reduce the air pollution. They describe the different control methods involved in all the devices employed for the purpose of controlling pollution. This paper entails the information of impact of using these control techniques and devices. The detrimental effects of pollutants from automobile emissions on
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in the collector trough. Solar heat distills pure ammonia vapor from the water-ammonia solution in the generator. The vapor condenses in the cooling coils and collects as liquid ammonia in the receiving tank in the evaporator. At the end of the day‚ the user switches three valves from the Day to Night position to allow the ammonia to evaporate in the ice compartment‚ providing the refrigeration to freeze the water. The resulting vapor is absorbed back in the generator. Critical to the operation
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