On Saturday‚ December 2nd‚ I saw the Live Newspaper Production of: BOILING POINT! Water‚ Politics‚ and Power. Boiling Point is production directed by Tom Harryman that gave a voice‚ while using satire‚ to show the flaws of how people of power in America deal with problems revolved around water. In this essay‚ I will analyze the audience‚ design‚ theme‚ acting‚ and the spectacle of the play. The audience had a mixed group of people. Even though I did not see anyone under that age of 17‚ I heard a
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MELTING POINT AND BOILING POINTS OF ORGANIC COMPOUNDS ABSTRACT The properties of organic compounds depend on their chemical structures. Intermolecular forces of attraction affect physical properties such as melting and boiling point. Through the Thomas Hoover apparatus‚ the melting point of 8 test compounds was determined. Salicylic acid exhibited the highest melting point while naphthalene‚ the lowest. The stronger the intermolecular forces of attraction‚ the higher the melting point. Boiling point
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get the boiling water’s temperature to increase by adding table salt. The problem it is trying to explain is‚ how does table salt affect the boiling temperature of water? does it increase or decrease? or does it stay the same? Hypothesis After reading the lab instructions - but before starting the lab - record your best “educated guess” about what will happen in the experiment. What hypothesis can you generate about the effect of adding salt to water? Adding table salt to boiling water will
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experiment was to investigate the effects of salt type and concentrations on the rate of heating and the boiling point. Then from this data make a conclusion which salt type and concentration is the most energy efficient at heating water to its boiling point. It was hypothesised that highest concentration of MgCl2 was going to be the most energy efficient at heating the solution to its boiling point. This is because MgCl2 has the lowest specific heat capacity thus will use the least amount of energy
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BOILING AND CONDENSATION BOILING • Phase change phenomenon where in transformation of liquid to vapour occurs at the saturation temperature of the fluid. It occurs at a solid/liquid interface due to convection heat transfer from the solid and usually occurs at surface temperatures higher than the saturation temperature of the fluid Agitation of fluid by vapor bubbles provides large convection coefficients Modified Newton’s law of cooling qs’’ h Ts Tsat Te • • • BOILING – CLASSIFICATON
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information about boiling water. If you cover the tin and allow the water and air to cool down‚ the air will cool and contract‚ lowering the pressure in the tin. If it lowers enough‚ the partial vacuum will collapse the walls of the can! The boiling point definitely reduces with air pressure. There is a famous demonstration where boiling water or coffee is drunk‚ the trick is it was in a vacuum chamber where it boiled at room temperature. The actual definition of the boiling point of water is the
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SHORT INTRODUCTION TO TWO-PHASE FLOWS Condensation and boiling heat transfer Herv´ Lemonnier e DM2S/STMF/LIEFT‚ CEA/Grenoble‚ 38054 Grenoble Cedex 9 Ph. +33(0)4 38 78 45 40‚ herve.lemonnier@cea.fr herve.lemonnier.sci.free.fr/TPF/TPF.htm ECP‚ 2011-2012 HEAT TRANSFER MECHANISMS • Condensation heat transfer: – drop condensation – film condensation • Boiling heat transfer: – Pool boiling‚ natural convection‚ ´bullition en vase e – Convective boiling‚ forced convection‚ • Only for pure fluids. For mixtures
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saucer is used if tea is to be cooled‚ quickly.This is because evaporation from the larger surface area of saucer is more than that of the smaller surface area of the tea cup. Temperature: At high temperature‚ rate of evaporation is high because at high temperature kinetic energy of molecules increases so high that they overcome the intermolecular forces ‚and‚ evaporate rapidly.For example‚ water level in a container with hot water decreases
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…………………KEY……………………… Matter & Energy Period …………. Skills 1. classifying types of matter 2. interpreting particle diagrams 3. identifying physical & chemical properties of matter 4. separating Mixtures 5. converting Temperatures 6. identifying physical & chemical changes in matter Skill #1: Classifying types of matter - refer to your notes and RB p. 1-2 Classify each of the following with the combination of terms listed below. pure substance – element mixture
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Lab Title: "The Effect of Salt on the Boiling Point of Water" Lab Question: How does adding salt to water affects it’s boiling point? Prediction : In this paper‚ a newly proposed model based on solvation between pure solvent and salt for prediction of salt effect on vapor–liquid equilibria is presented by using only the vapor pressure depression data of pure solvent+salt systems that compose the mixed solvent with salt system Materials : 200 mL of distilled water‚ 2 beakers
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