Bio1. Explain the significance of the principle of competitive exclusion. ............................................................................................................................................... ............................................................................................................................................... .......................................................................................................................................
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Abstract The aim of this experiment is to determine the heat of combustion for naphthalene. This is the some basic bomb procedures. In this experiment‚ we us naphthalene as a fuel in bomb calorimeter which naphthalene powder is turned to pellet using pellet press. The fuel is burnt at constant volume condition in a high pressure container (the bomb). The whole bomb‚ pressurized with excess of oxygen. The mass of iron wire‚ ma =0.02g. The mass of naphthalene pellet with iron wire‚ mb =0.38g. The
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.C. is committed to supporting business and investing and has developed numerous valuable resources for business owners and investors at various stages in their endeavours. Learn about these resources and how you can make the most out of your opportunities. Business Management Thinking of starting a business but not sure where to stThe Ksp expression is A. Ksp = Sr2+ [ ]3 PO4 3− [ ]2 B. Ksp = 3Sr2+ [ ] 2PO4 3− [ ] C. Ksp = 3Sr2+ [ ]3 2PO4 3− [ ]2 D. Ksp = 3Sr2+ [ ]3 2PO4
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The Market for Gas Turbine Electrical Power Generation Product Code #F646 A Special Focused Market Segment Analysis by: Industrial & Marine Turbine Forecast - Gas & Steam Turbines Analysis 1 The Market for Gas Turbine Electrical Power Generation 2011 - 2020 Table of Contents Executive Summary .................................................................................................................................................2 Introduction.................................
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destructive to the environment. Extrusion is the process in manufacturing this type of bags. a.1 Energy The production of PLastics demands large quantities of both energy and raw materials. Two plastic bags require 990 kJ (kilojoules) of natural gas‚ 240 kJ of petroleum‚ and 160 kJ of coal (Institute for Lifecycle Environmental Assessment‚ 1990). Additionally‚ there are large amounts of energy used to acquire oil‚ such as the large‚ fuel-burning heavy machinery‚ and most of the electricity used in
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Surname Centre No. Candidate No. Paper Reference(s) Initial(s) Paper Reference Signature 7 0 4 0 7040/02 0 2 Examiner’s use only London Examinations GCE Biology Ordinary Level Paper 2 Friday 18 January 2008 – Afternoon Time: 2 hours Team Leader’s use only Question Leave Number Blank 1 2 3 4 5 Materials required for examination Nil Items included with question papers Nil 6 7 8 Instructions to Candidates In the boxes above‚ write your centre number‚ candidate
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Point: 1373 KBoiling Point: 3273 KDensity: 7.23 g/cm^3Color of Element in its Standard Phase: A metallic silverState of Matter at Standard Temperature: SolidPhysical Properties: Member of the Lanthanide Family Heat of Vaporization: 289 kJ/mol Molar Volume: 19.95 cm^3/mole Chemical Properties: Electronegativity: -1.13 (Pauling)‚ -1.07 (Allrod Ronchow) 9 isotopes All isotopes are radioactive Isotopes: 9 isotopes‚ although none of them are stableWho Discovered
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formula: Nu = 0.023 Re 0.8 Pr 0.3 For pulsating flow‚ assume h is 2 times the value obtained from this formula. Prandtl Number Pr = 0.6 Mass flow rate of exhaust gasses = 0.250 kg/s Internal diameter of exhaust pipe = 6 cm Cp of exhaust gasses 1.08 kJ/kg K Density of exhaust gasses = 0.494 kg/m3 Dynamic viscosity of exhaust gasses = 3.32E-5 kg/m s Thermal conductivity of exhaust gasses = 5.26E-5 kW/m K Total length of exhaust pipe = 1.8 m Initial exhaust gas temperature = 483o C Temperature of exhaust
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formula). These bonds can undergo hydrolysis to yield either a molecule of ADP (adenosine diphosphate) and inorganic phosphate or a molecule of AMP (adenosine monophosphate) and pyrophosphate. Both these reactions yield a large amount of energy (about 30.6 kJ mol–1) that is used to bring about such biological processes as muscle contraction‚ the active transport of ions and molecules across plasma membranes‚ and the synthesis of biomolecules. The reactions bringing about these processes often involve the
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salts that will be used to predict lattice energy again by using Hess’ Law. Heat may increase during experiment and undergo exothermic reaction. Analysis: Q = m c (Tf - Ti) = 27.9°C – 21.3°C = 6.6°C Q = (101.81g)(4180kJ/g°C)(6.6°C) Q = 2808734 kJ Discussion: Measurements were relatively accurate and closely linked to quantitative values. When measurement was a little higher‚ value resulted a little higher. The Styrofoam for this experiment was necessary because it insulates leading to less
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