more efficient sources of power. At the forefront of research for these power sources are hydrogen fuel cells. This power source takes in the most abundant element in the universe‚ Hydrogen‚ and yields immense power without combustion or pollution. The three aspects of this scientific breakthrough are the fuel cells‚ hydrogen production‚ and hydrogen storage. Fuel cells are the devices with which Hydrogen is made into electricity. These use a technology much similar to that of something we are
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Inorganic Chemistry Assignment (a) Describe and explain the trend in the boiling points of the elements down group VII from Fluorine to Iodine. All of the halogens exist as diatomic molecules (F2‚ Cl2 and I2) the intermolecular attractions between the molecules hold them together. The larger the molecule (as it moves down the halogen group) the bigger the intermolecular forces are between electrons because with more rings the distance between each electron is larger. The larger elements such
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Practical: The Effect of Concentration on Reaction Rate Aim: To use a simple reaction between sodium thiosulphate and hydrochloric acid to discover concentration this determines how fast chemical reactions occur. Independent Variable: Concentration of hydrochloric acid (%) Dependent Variable: Time taken for chemical reaction to take place (sec) Hypothesis: My prediction is that the increased concentration of the thiosulfate will in turn lead to an increase in the rate of reaction. This
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data protection and privacy‚ your IP address will only be stored if you are a registered user of Facebook and you are currently logged in to the service. For more detailed information‚ please click on the "i" symbol. Biochemist Dan Robertson’s living gas stations have the dark-green shimmer of oak leaves and are as tiny as E. coli bacteria. Their genetic material has been fine-tuned by human hands. When light passes through their outer layer‚ they excrete droplets of fuel. "We had to fool the organism
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KINETICS OF THE ACID DECOMPOSITION OF THIOSULFATE Aqueous solutions of thiosulfate‚ S2O32-(aq) are stable if neutral or basic‚ but decompose quickly when the thiosulfate is dissolved in acid according to the equation: Sulfur dioxide is a gas at room temperature‚ but is very soluble in water. Sulfur‚ a water insoluble solid‚ forms a colloidal suspension. As a result‚ the solution first becomes cloudy and then opaque. We can take advantage of the developing opacity of the reaction system to do a
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\documentstyle[preprint‚prc‚aps‚floats‚epsf]{revtex} \begin{document} \title{Nonuniversal Effects in the Homogeneous Bose Gas} \author{Shawn Hermans} \address{Saint John’s University‚ Collegeville‚ MN 56321} %Professor Eric Braaten\thanks{{\tt The Ohio State University}} %Professor Thomas Kirkman\thanks{{\tt Saint John’s University}} \author{Advisor: Professor Eric Braaten} \address{The Ohio State University‚ Columbus‚ OH 43210} \maketitle \begin{abstract} In
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their gills only allow them to take in oxygen from the water. The percentage of oxygen is the water is significantly lower than the amount of oxygen in the air. Fish have adapted to be able to filter oxygen from the water despite its low percentage. Gas exchange in fish occurs in their gills which is supported by a bony arch. Fish take water in through their mouths. Water enters via a fish’s open mouth‚ its opercula close and stop water from leaving before being forced through the gill filaments. Once
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Organic fabric is sown‚ grown‚ harvested & processed through carefully implemented and monitored phases‚ utilising crop rotation and beneficial insect predators to prevent and control disease‚ weed and pest problems in the growing stages‚ as well as safe corn-starches and peroxides in the processing phase. The use of genetically modified seeds‚ toxic insecticides‚ pesticides and fertilizers & chemical inputs such as formaldehyde‚ heavy metals‚ chlorine bleaches and sulfurs are strictly prohibited
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w The Effect of Changing the surface area on the Rate of Reaction? By : 22/10/2013 The effect of changing the surface area on the rate of reaction? Unit Question: Should we speed things up or slow them down? Hypothesis: According to collision theory‚ should the surface area increase the amount of collisions increase increasing the rate of reaction. Therefore‚ my hypothesis is that when the surface area
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Electrochemical production of hydrogen from water Presented by: Heba A. Alsabagh Hiba M. Maghayreh Hiba N. Abu Zaghleh Sahar M. Alissa University of Jordan Faculty of Engineering & Technology Department of Chemical Engineering Supervised by: 0078381 0076527 0076528 0072918 Dr. Hatem Alsyouri December‚ 2011 Chapters: Introduction Literature Survey Process Selection and Design Process Description Material and Energy Balances Design 2 Chapters: Feasibility Study
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