Speech Good morning Today we will tell u about the transportation of water and minerals in plants. The plants absorb water and minerals from the ground through roots. These nutrients are transported to various parts of the plant like stem‚ leaves and flowers. The phenomenon of upward movement of water and minerals is called ascent of sap. Only a small quantity of water is used up in metabolic process and growth of the plant. The plants require water and mineral salts for making food by process
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Steam Turbines The invention of the water turbine was so successful that eventually‚ the idea came about for extracting power from steam. Steam has one great advantage over water-it expands in volume with tremendous velocity. To be the most effective‚ a steam turbine must run at a very high speed. No wheel made can revolve at any speed approaching the velocity that a steam turbine can. By utilizing the kinetic energy of steam flow‚ the turbine could achieve a higher efficiency. As a result
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Steam generation cannot be improved after 55 percent or is not 100-- efficient. Steam generation controls over half of the developed world’s power. Steam power plants use a boiler in which high efficiency typically greater than 90% on the higher heating value. Some manufacturers claim that 98 can be achieved. Steam generation controls over half of the developed world’s power. Steam powerplants are dated back to well over 150 years. Ships have utilized the efficiency of boilers and there
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Isolation of the Major Constituents of Clove Oil Organic Chemistry Laboratory II‚ 10 February 2011 Corey Cates Introduction and Objectives The purpose of this lab was to obtain a pure sample of clove oil from ground cloves using steam distillation‚ perform infrared spectroscopy on the sample‚ and analyze the IR to identify the major constituent in the clove oil. The first day the clove oil was removed from the ground cloves into an aqueous solution then removed from the water using DCM. The sample
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Isolation of Acetyleugenol (Clove Oil) from Cloves Purpose In this experiment‚ you will obtain the essential oil from cloves by steam distillation. You will then separate a component (acetyleugenol) from the oil by liquid-liquid extraction. Finally‚ you will isolate the acetyleugenol by using a rotovap for reduced pressure distillation‚ which will remove the organic solvent (dichloromethane). Background Whole cloves contain between 14% and 20% by weight of essential oils‚ but
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Experiment 7- Isolation of the Major Component of Clove Oil Pre-Lab Questions: 1.) Briefly explain the concept of steam distillation. What is the difference between a simple distillation and a steam distillation? When a mixture of two immiscible liquids are distilled it is referred to as codistillation. This process is referred to as steam distillation when one of the liquids is water. This distillation is used to separate organic liquids from natural products and reaction mixtures in which
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1 Section 2 – 12:30 to 2:20 Distillation and Fractional Distillation Distillation and Fraction Distillations Purpose: The purpose of distillation is to purify a liquid. Distillations are use to purify contaminates out of water to obtain clean pure water‚ as well as‚ to separate mixtures of liquids into their individual components; e.g. methanol and water. Objective: Distill methanol from water using a simple distillation apparatus and fractional distillation apparatus to determine which
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using it. It is done by a method called fractional distillation which involves separation of two or more liquids having different boiling points. The refining is done by changing the liquid into its gaseous state and then cooling the gaseous mixture at controlled temperatures such that at a time only one of the vapours having boiling point I liquefies first. This is generally done by a special tower called fractionating column. Fractional distillation of petroleum Crude petroleum is heated to a temperature
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Kearney‚ Test results: SEGS LS-2 solar collector‚ Report of Sandia National Laboratories (SANDIA-94-1884)‚ 1994. SOLAR 94‚ 1994‚ pp. 147–150. Energy 60 (1) (1997) 49–59. [5] S.D. Odeh‚ G.L. Morrison‚ M. Behnia‚ Modelling of parabolic through direct steam generation solar collectors‚ Solar Energy 62 (6) (1998) 395–406. [8] J.A. Duffie‚ W.A. Beckman‚ Solar Engineering of Thermal Processes‚ second ed.‚ Wiley Interscience‚ New York‚ 1991 [9] F. Kreith‚ M.S. Bohn‚ Principles of Heat Transfer‚ sixth ed.‚
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Fractional Distillation Name: Pinaki Das Partner’s Name: Alice Kim Course: Advance Science Grade 9 Slot: B Date: November 6th 2013 Fractional distillation separates a mixture of liquids based on differences in the boiling points of the liquid. The purpose of this experiment was to identify
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