increased temperature there would be more cloud as our text states warm air can hold more water vapor than cool air. At a decrease temperature‚ it would be the opposite with less clouds and holding less water vapors. Experiment 1: Water Movement POST LAB QUESTIONS 1. Develop a hypothesis predicting the effect of sunlight on evaporation? Hypothesis = Sunlight increases the effect of water vapors‚ increasing the formation of clouds and water. The warmer the sun makes it‚ he more of evaporation
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the dissolved particles and the solvent. Colligative properties are properties that depend on the dissolved solutes in the solution. There are four main colligative properties; vapor pressure‚ freezing point‚ boiling point‚ and osmotic pressure. These four colligative properties can be changed by using different solutes. Vapor pressure is lowered when solutes are added‚ the boiling point is elevated when solutes are added‚ the freezing point is lowered when solutes are added and the osmotic pressure
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Vapor state (Sublimation) This can be observed in the process of evaporation that clouds are made of pure distilled water and that’s why rain water is so pure. Moreover the process of distillation can be performed in a laboratory. All elements have a property known as vapor pressure. The vapor pressure is a critical concept in the process of distillation. The more volatile a substance is‚ the greater its vapor pressure is. When vapor pressure of a substance meets
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distillation‚ first consider what happens upon heating a liquid. At any temperature‚ some molecules of a liquid possess enough kinetic energy to escape into the vapor phase (evaporation) and some of the molecules in the vapor phase return to the liquid (condensation). An equilibrium is set up‚ with molecules going back and forth between liquid and vapor. At higher temperatures‚ more
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container fire that has consumed the oxygen within the space when a new source of oxygen is introduced. The introduction of oxygen results in an immediate smoke explosion. Boiling point (BP) The temperature where a liquid will convert to a gas at a vapor pressure equal to or greater than atmospheric pressure. British thermal unit (BTU) The amount of heat required to raise the temperature of one pound of water one degree Fahrenheit. Class A fires Fires involving ordinary combustibles. Class
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vaporize (turn into a gas or vapor). A volatile substance can be defined as (1) a substance that evaporates readily at normal temperatures and/or (2) one that has a measurable vapor pressure. The vapor pressure of a substance is the pressure at which its gaseous (vapor) phase is in equilibrium with its liquid or solid phase. It is a measure of the tendency of molecules and atoms to escape from a liquid or solid. At a given temperature‚ a substance with a higher vapor pressure will vaporize more readily
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Layer is Being Destroyed? Ozone breaks down in the ozone layer in the following major ways: * N2O* encounters water vapor‚ and can no longer help form ozone. * Ozone absorbs UV-C or UV-B and most of it will break back down to oxygen. * Ozone has a natural half-life‚ and decays spontaneously with time and temperature back to oxygen. * Ozone encounters water vapor‚ and forms hydrogen peroxide. * Ozone encounters a photocatalyst (like CFC‚ HCFC‚ Halon)‚ and is converted back to oxygen
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Planning‚ Forecasting and Replenishment: How to Create a Supply Chain Advantage. AMACOM‚ New York. Sparks‚ L. and Wagner‚ B.A. (2003) Retail exchanges: a research agenda. International Journal of Supply Chain Management. 8 (2)‚ p. 17–25. VICS website (2011) VICS Committee. [Online]. Available from: http://www.vics.org/committees/cpfr/ [Accessed 10th March 2011] Vlčková‚ V
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I. PRETEST Directions: Match the set in column A that is equivalent to the set in column B. Write the letter of your answer in the space provided before the number. COLUMN A COLUMN B _____ 1. A. _____ 2. B. _____ 3. C. _____ 4. D. _____ 5. E. THINGS YOU NEED TO KNOW • EQUIVALENT SETS are sets that have the same number of elements. Say for example: is equivalent to The two sets
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Experiment In this experiment a high vacuum sublimation was performed to determine the vapor pressure and finally the enthalpy of sublimation of Vanillin and o-Vanillin. AKnudsen cell with sample was weighed 10 times maybe just say weighed by difference‚ they don’t usually like it when you spell out the steps like that no way it was like 0.5 grams‚ check the lab again and at least 0.5 g of Vanillin or o-Vanillin was added to the cell and it was reweighed 10 times. This experiment depended heavily
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