on differences in physical properties such as decantation‚ filtration‚ extraction and sublimation. The process of separating a liquid from a solid (sediment) by gently pouring the liquid from the solid so as not to disturb the solid is Decantation. Filtration is the process of separating a solid from liquid by means of a porous substance –a filter- which allows the liquid to pass through but not the solid. Extraction is the separation of a substance from a mixture by preferentially dissolving that
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form of acyclic alcohol is ethanol which is a clear‚ volatile‚ flammable liquid that boils at 78.4℃. It is used as an industrial solvent‚ car fuel‚ and as raw materials in the chemical industry. Ethanol is widely used as a solvent for human contact or consumption‚ including perfumes‚ flavorings‚ colorings‚ and medicines. Another type of acyclic acid is methanol‚ and it is also the simplest sort of alcohol. It is a clear liquid that resembles ethanol is odor and properties‚ but it has a slightly lower
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a substance (Moore‚ Stanitski & Jurs‚ 2009). Freezing point is the fixed temperature at which a pure liquid converted into crystalline solid. Melting point is the fixed temperature at which a crystalline solid converted to a liquid (Ebbing & Gammon‚ 2010). The melting point of a solid and the freezing point of its liquid is the same. It is the temperature at which the rate of freezing of its liquid is the same as the rate of melting of a solid under a given applied pressure (Whitten‚ Davis & Peck
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DISCUSSION | 9 | CONCLUSION | 10 | REFERENCES | 11 | APPENDIX | 12 | Summary This study was undertaken to investigate the characteristics of a Centrifugal pump. The Centrifugal pump is largely used in petrochemical industries to move liquids around the plants and refineries. Through common practise of Centrifugal pump operating characteristics is it possible to determine the optimum conditions of particular conditions. The results of typical characteristics are expressed on this work
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emulsion‚ which is a mixture of two liquids that normally cannot be combined. Mayonnaise is made by combining lemon juice or vinegar with egg yolks. The egg yolk is obtained and10 drops of was added to the egg yolk in a beaker. Oil was then added in a steady stream while whisking. This was done until the oil was completely mixed in and the mayonnaise was thick and fluffy. There was an emulsion created; a dispersion of one liquid (the oil)‚ inside another liquid (the vinegar)‚ with an emulsifier (the
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Identify and describe procedures that can be used to separate naturally occurring mixtures of: * Solids of different sizes: Sieving to separate larger solids from the smaller. * Solids and liquids: filtration * Dissolved solids in liquids: Evaporation to remove liquid from solids * Liquids: * Gases: | * | * | * Assess separation techniques for their suitability in separating examples of earth materials‚ identifying the differences in properties which enable these
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must reach 41°F/5°C or below within an additional four hours‚ for a total cooling time of six hours. The proper way to cool hot liquids is to place them in a metal container in an ice water bath that reaches the same level as the liquid inside the container. Stir the liquid in the container frequently so that the warmer liquid at the center mixes with the cooler liquid at the outside edges of the container‚ bringing the overall temperature down more rapidly. Semisolid and solid foods should be refrigerated
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I LIQUID STATE ii GASES STATE In solid molecules are very closed spaced where as liquids. The spacing b/w the different molecules is relatively large and in gases the spacing b/w molecules is still large Its means the intermolecular cohesive forces are large in solids‚ smaller in gases and extremely small in gases and on account of this fact solids posses compact and regional form‚ liquids molecules
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Finish Line & Beyond Science Class 9th Matter in Our Surroundings Characteristics of Particles of Matter States of Matter Effect of Change of Temperature Effect of Change of Pressure www.excellup.com ©2009 send your queries to enquiry@excellup.com Finish Line & Beyond Introduction Everything in this universe is made up of material which scientists have named “matter”. The air we breathe‚ the food we eat‚ stones‚ clouds‚ stars‚ plants and animals‚ even a small drop of water or a particle
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variety of chemical and physical methods to determine molecular masses. One of these methods includes the Dumas method for determining the molecular weight of a volatile liquid. This method‚ which was proposed by John Dumas in 1826‚ makes use of a volatile liquid (vaporizes at a relatively low temperature) and allows this liquid to be heated in a water bath to a known temperature and escape from a flask through a tiny opening (Giunta‚ 2003). In this situation‚ vapours are assumed to be obeying the
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