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Essays in Organic Chemistry category
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Investigation to Find the Relative Energy
... for the amount of KJ/mol that the breaking of various bonds (O-O, C-H, O-H, C-C, C-O) release I have calculated the amount of energy that is needed to combust each of the alcohols. I have shown this information in a ...
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Investigation to see how much 5 alcohols combust
... Methanol will be the alcohol to combust the least, followed by Ethanol, Propanol and Butanol, then finally Pentanol, combusting the most. Preliminary Work Before carrying out my final experiment, I have to carry out a preliminary experiment, to determine the most efficient ...
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Iron ore: processes and History
... look to have a tremendous importance in lunar construction, manufacturing, and export. Process: Over-view Smelting is a way of getting metals from the rocks in which they exist in their natural form. These rocks are often known as ores. These ores ...
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Is the Heat Energy Released On Combustion of an Alcohol Dependant On the Size of the Alcohol
... of an exothermic reaction, it is one, which takes in energy from the surroundings, usually in the form of heat and is shown by a fall in temperature. Activation Energy or Eact represents the minimum energy needed by reacting particles ...
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Is there a relation between the structure of different alcohols and the energy release when burn?
... the initial temperature of the calorimeter. Do not use a maximum temperature for the heat capacity of around 30C Put the burner anther the calorimeter and light it. When you get to the decided temperature put out the flame of the burner. After measure ...
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Measuring the Enthalpy Change of Combustion of Different Fuels
... burner and then use a pipette to place more methanol into the burner. 2. Place the spirit burner with the cap on a balance and record the mass given in grams. 3. Measure 100 cm3 of water in the 100cm3 measuring cylinder. 4. ...
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Methanol - Bond Energy Calculations
... C - C - O - H O = O H H H = H - C x 14 (435) C - O x 2 (358) O - H x 2 (464) O = O x 9 (497) C - C x 4 (347) = 13595kj Structure of Products: 6x 8x O = ...
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Methanol Basics
... severe fires when it does ignite. * HIGH PERFORMANCE Methanol is a high-octane fuel that offers excellent acceleration and vehicle power. * ECONOMICALLY ATTRACTIVE With economies of scale, methanol could be produced, distributed, and sold to consumers at prices competitive ...
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Molar Heat of Combustion of Alcohols
... bond. Equations for the Three Alcohols: This is the formula for all alcohols: Cn H2n+1 OH The molar heat of combustion is the heat liberated when one mole of alcohol is burnt in a plentiful supply of air. These are the formulas for the combustion ...
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My investigation is based around the subject of alcohols. The majority of people most commonly know alcohol as being a drink, which is consumed by many socially and is thought to be relaxing, but it actually acts a depressant.
... in the series are similar in both physical properties and chemical reactions. The physical properties should show a trend, for example the boiling points and melting points would both increase as the molecules become larger down the group. The chemical ...
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Observation - Alcohol No. Of Carbon atoms per Alcohol Initial Mass Final Mass?
... near what I predicted. There is no major trend on these graphs apart from there is an uprising slope this is due to the fact the enthalpy of combustion increased from Methanol to Butanol but there is a slight ...
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OCR C3 Case Study - Food Matters - Who is to blame for obesity
... or her height (in metres). A person with a BMI of 30 is considered obese with 25 being overweight. As far as health goes for the obese, the risks are unpromising. The most common chronic diseases are: * Cardiovascular disease - ...
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One World Crude Oil
... gas is used for heating cooking and making plastics. It's also common by the names: methane, ethane, propane and butane. It is often a liquid pressurised to create LPG (Liquefied Petroleum Gas). Naphtha or also called Ligroin it's a part ...
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Original Writing Poetry Lost Moments
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Original Writing Poetry Death of an Innocent
... was the others, Mom. The others didnt think. He was probably as the same party as I. The only difference is he drank and I will die. Why do people drink, Mom? It can ruin your whole life. Im feeling ...
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Outline how the main pollutants are formed in vehicle engines and the environmental problems they cause. Explain why different types of vehicle engines produce different exhaust emissions
... will form nitric acid or nitrous acid that will contribute to acid rain. NOx is formed by reaction of nitrogen and oxygen in the air so is pretty much unavoidable. It can be reduced by decreasing the time that combustion ...
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oxidation of ethanol
... may occur on damaged skin - Sensitisation by skin contact Danger to environment - Very to toxic to aquatic environment may Cause long-term adverse effects Sulphuric Acid - Very corrosive - cause severe burns Dangerous with Sodium - dangerous reactions can take place ...
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Petrol - In its crude state, petroleum is a virtually useless material.
... premature explosion, known as knocking, still forces the piston downwards and powers the vehicle. However, the chemical energy in the petrol is less efficiently converted into mechanical energy. As a result, the vehicle will do fewer miles per gallon. Knocking ...
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Photochemical smog is produced by the action of the sums rays on primary and secondary pollutants in the lower atmosphere, the troposphere.
... the protein all contain nitrogen, as well as DNA. When the fuel is burnt, the oxygen in the air reacts with the nitrogen compounds in the fossil fuel to produce NOx which is called Fuel NOx. However, most of the ...
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Physics - Delphi Automotives Needle Lift.
... be used in a wide range of instances The Hall effect Integrated Circuit is a very small chip that is made up of many transistors. It consists of a thin layer of silicon as a Hall generator (which works to a ...
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Physics - Efficiency of a Fuel.
... Heat given out (C) per gram = I will also record how black the bottom of the beaker is after the experiment on a scale of 1 to 10 to include this in my prediction and conclusion when talking ...
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Physics Report on a Visit to the Royal Naval Engineer College
... cables. * When we apply a force to a material, it's being subjected to stress (). * When a material is subjected to a tensile or compressive force it changes in length; strain () is the change in length per ...
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Plan and carry out an investigation to determine which of the four alcohols is the most exothermic.
... bonds can be formed and broken. Breaking bonds need less energy than is needed to form bonds - exothermic reaction. Bigger molecules use high energy to be broken. Methanol and Ethanol have differences as Methanol melts at a higher temperature ...
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Planning - The aim of the experiment is to work out the enthalpy change of combustion of a fuel.
... the energy taken in during the reaction. A combustion reaction is an oxidation reaction in which heat is given out. If there is heat, the combustion is described as burning. Substances that undergo combustion are called fuels. Alcohols are fuels. Alcohols are ...
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Planning - Variable input - Alcohol
... keep this variable constant the same mass of ceramic wool will be used. Container To keep this variable constant only one container will be used for the whole experiment Height of Container To keep this variable constant the container will remain at the same ...