S5E1 Gaseous Diffusion 1.0 ABSTRACT In this experiment‚ our objective is to find out the gas diffusion coefficient‚ D of acetone in the air. This experiment is conducted at a temperature of 50ºC and atmospheric pressure. The method that is applied to conduct this experiment is called the Winkleman method where the level of acetone (Z) is determined every 15 minutes by using a microscope. With the level of acetone being determined‚ a graph of t/L+Lo (min /mm) vs. L-Lo (mm) is plotted and the
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solution of the diffusion equation describing the flow of radon through soil ´ ´ Svetislav Savovic a‚b‚n‚ Alexandar Djordjevich a‚ Peter W. Tse a‚ Dragoslav Nikezic b a b City University of Hong Kong‚ 83 Tat Chee Avenue‚ Kowloon‚ Hong Kong‚ China ´ Faculty of Science‚ R. Domanovica 12‚ 34000 Kragujevac‚ Serbia a r t i c l e in fo abstract Article history: Received 13 April 2010 Received in revised form 13 September 2010 Accepted 14 September 2010 Radon diffusion through soil and
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The Nervous System: Membrane Potential 1. Record the intracellular and extracellular concentrations of the following ions (mM/L): Intracellular Extracellular Sodium (Na+) Potassium (K+) Chloride (Cl–) 2. Excitable cells‚ like neurons‚ are more permeable to ___________ than to ___________. 3. How would the following alterations affect the membrane permeability to K+? Use arrows to indicate the change in permeability. a. An increase in the number of passive K+ channels
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RESOURCES GUIDE ON ARTIFICIAL RECHARGE TO GROUND WATER NEW DELHI MAY‚ 2000 GUIDE ON ARTIFICIAL RECHARGE TO GROUND WATER CONTENTS Page No. 1. INTRODUCTION 1-3 2. PLANNING OF ARTIFICIAL RECHARGE PROJECTS 3-9 3. ARTIFICIAL RECHARGE TECHNIQUES AND DESIGN 10 - 32 4. MONITORING‚ MECHANISM FOR ARTIFICIAL RECHARGE PROJECTS 33 - 36 5. CASE HISTORIES OF ARTIFICIAL RECHARGE IN INDIA 36 - 75 Annexure 1 --Format For Preparation of Artificial Recharge Project
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trading route that began around 138 B. C. These were routes that were paramount to the exchanges and interactions between civilizations. These routes connected the west and east by monks‚ soldiers‚ merchants‚ pilgrims‚ also nomads. The Route traveled through china‚ the highlands of the Pamir and Tian Shan ranges‚ the Tarima basin‚ and onto‚ Afghanistan‚ Central Asia‚ and Iran and to the eastern shores of the Mediterranean Sea. This route insisted travel by either land or sea. Extending about 6‚000 kilometers
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EXPERIMENT 5 GAS DIFFUSION COEFFICIENT OBJECTIVES: Determine the gas diffusion coefficient of acetone using the established Winkelmann’s method KEYWORDS Diffusivity‚ Gas Diffusion Coefficient‚ Winkelmann’s method OVERVIEW The knowledge of physical and chemical properties of certain materials is important because very often process engineering deal with the transformation and distribution of these materials in bulk. One such property is diffusivity. Mass transfer by diffusion takes place
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to cross through the epithelial cell membrane to enter into the epithelial cell’s cytoplasm – its charged cuz of side chains To get through the membrane the amino acid must cross the Simple columnar epithelial cells lining the apical surface of the small intestinal tract. These cells are impermeable to any harmful bacteria that may be ingested by the body‚ but permeable to necessary ions. Absorption of amino acids occurs through a process known as facilitated diffusion through membrane transporters
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Practical Assessment Planning AIM Beetroot cells contain a red pigment‚ which is stored in the cell vacuole and a vacuole membrane to prevent this leaking out of the cell surrounds it. The outer of the cell is also surrounded by a membrane‚ which again helps contain the pigment inside the cell. In this experiment I aim to find out the relationship between the leakage of red pigment from a beetroot cell and the surface area. To do this successfully I will need to alter the surface area of the beetroot
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Diffusion and Osmosis Experiment with a Shell-Less Egg After Three days of Testing Methods with Water and Corn Syrup Lisa July 1‚ 2013 Purpose To use the properties of diffusion and osmosis to see the effects of either corn syrup or water on a shell-less raw egg over a three day period. While looking to see the effects of these liquids on the raw egg‚ one can also apply the properties of hypotonic‚ hypertonic‚ and isotonic solutions. Introduction Cells have an outer covering called the cell membrane
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Effects of Tonicity on Cell Membrane Abstract The purpose of this experiment was to determine the effects of tonicity on a cell membrane using red blood cells‚ potato strips and three unknown solutions (A‚ B‚ C). First three slides were prepared containing RBC’s and unknown solutions A‚ B and C. A control slide was prepared only using RBC’s. After observing each slide under the microscope it was determined that unknown solution A was hypertonic because the RBC appeared to have shrunk. The
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