CHAPTER I INTRODUCTION 1.1 HISTORY: Ethylene Glycol (1‚ 2 – ethanediol)‚ HOCH2CH2OH usually called glycol is the simplest Diol. Diethylene glycol and Triethylene glycol are Oligomers of Mono ethylene glycol. Ethylene glycol was first prepared by Wurtz in 1859; treatment of 1‚2 dibromoethane with silver acetate yielding ethylene glycol diacetate via saponification with potassium hydroxide and in
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Chapter 1: Intermolecular Forces: Liquids‚ Solids‚ and Phase Changes Chem 11: General Chemistry 2 Topics 1.1 An Overview of Physical States and Phase Changes 1.2 Quantitative Aspects of Phase Changes 1.3 Types of Intermolecular Forces 1.4 Properties of the Liquid State 1.5 Uniqueness of Water 1.6 The Solid State: Structure‚ Properties and Bonding A hot spring on a snowy day The Kinetic Molecular View of the Three States The characteristic properties of gases‚ liquids
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Thermodynamics & Heat Engines Basic Concepts Thermodynamics • • • • • • Thermodynamics= therme + dynamis Latin word therme means = heat Dynamis means = power or forces causing motion so‚ overall meaning of thermodynamics is heat–power or force interaction between system and surrounding. for example It is based upon general observation and those may be formulated in form of thermodynamic law as – Zeroth law of thermodynamics First law of thermodynamics Second law of
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Q.1 Bond enthalpy of fluorine is lower than that of chlorine‚ why? Q.2 Give the IUPAC name of the following compound: (CH3)3-C-C-COOH ║ O Q.3 On increasing temperature‚ activation energy of a reaction decreases‚ why? Q 4 Which of the following is most effective electrolyte in the coagulative of AgI/Ag+sol? K2SO4‚ MgCl2‚ K4[Fe(CN)6] Q.5 Write the reaction when glucose is heated with excess of HI. Q.6 Which Xe compound has distorted octahedral shape? Q.7 What is the denticity of
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would be a better substance to use commercially‚ because fuels need to have a high energy output and low storage volume to be used as fuel. Our hypothesis was proven correct‚ as this experiment allowed us to gain a better grasp on the concepts of enthalpy‚ heat capacity‚ and thermochemical reactions‚ all of which were necessary for us to understand to complete the task. Paraffin wax produces more energy per gram than Ethanol based on our test results‚ and simply by the molecule comparison itself.
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M&AE 305 October 3‚ 2006 Thin Airfoil Theory D. A. Caughey Sibley School of Mechanical & Aerospace Engineering Cornell University Ithaca‚ New York 14853-7501 These notes provide the background needed to implement a simple vortex-lattice numerical method to determine the properties of thin airfoils. This material is covered in Lecture‚ but is not in the textbook [5]. A summary of results from the analytical theory also is provided‚ as well as a comparison of the thin-airfoil results with those
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[This Article appeared in the American Scientist (Nov-Dec 1990)‚ Volume 78‚ 550-558. Retyped and posted with permission.] The Science of Scientific Writing If the reader is to grasp what the writer means‚ the writer must understand what the reader needs George D. Gopen and Judith A. Swan* *George D. Gopen is associate professor of English and Director of Writing Programs at Duke University. He holds a Ph.D. in English from Harvard University and a J.D. from Harvard Law School. Judith A. Swan
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Experiment 11 Calorimetry and Hess’s Law Purpose- To determine the change in enthalpy for four reactions using calorimetry and Hess’s Law Procedures: A. Calibration of the Calorimeter 1. Obtain two copper cylinders and a Styrofoam cup with lid from your lab instructor. Check out a digital thermometer display from the storeroom window. 2. Set up a hot water bath using a 600mL beaker‚ ring stand‚ and Bunsen burner. Weigh the two copper cylinders
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Semester 1 Revision The list below will assist you to check your understanding of the main concepts studied in Semester One. Work carefully through the list below and make sure that you can do what the statement says. This is not a course summary. It is a checklist for you to use to identify areas where you need extra work and a guide for your study. Macroscopic properties of matter I can | | | Classification
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SYLLABUS CHEMISTRY (043) CLASS-XII – (2012-13) Annexure - ‘ I ’ S.No. 1. 2. 3. 4. Type of Question Long Answers (LA) Short Answers-II (SA II) Short Answers-I (SA-I) Very Short Answer (VSA) Total Marks for No. of Total Marks each Question Questions 5 3 2 1 3 9 10 08 30 15 27 20 08 70 Weightage 4 5 5 5 4 3 8 5 3 4 4 6 4 4 3 3 70 Total: S.No. UNIT 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. Solid State Solutions Electrochemistry Chemical Kinetics Surface Chemistry General Principles
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