Hybrid Electric Cars‚ Combustion Engine driven cars and their Impact on Environment. Z. Čeřovský*‚ P. Mindl* * Czech Technical University in Prague‚ Praha 6‚ Technická 2‚ Czech Republic Estimated vehicle number on the Earth 3 Total vehicle number in Milliards Abstract--Paper stresses the negative influence of cars on the environment. Hybrid cars technology can diminish the fuel consumption and green house gases production. Different types of electric hybrid powertrains are described
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Combustion Of Alcohols Planning This investigation involves burning alcohol in the air. Key science- Chemistry by Eileen Ramsden says that " an alcohol is a series of organic‚ homologous compounds‚ with the general formula Cn H2n+1OH". The alcohol reacts with the oxygen in the air to form the products water and carbon dioxide: Cn H2n+1OH +(n+n/2)-1O2 ? nH2O + nCO2 The structure of the molecules in this reaction is: H H | | H - C - C - O- H + 3[O=O] ? 1/2[O=C=O] + 3[H-O-H] | | H H This reaction
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Jeanmart2 and J. Vandooren1 1Laboratoire 2Unité catherineduynslaegher@uclouvain.be de Physico-Chimie de la Combustion‚ Place Louis Pasteur n° 1 de Thermodynamique et Turbomachines‚ Place du Levant n° 2 Université Catholique de Louvain - 1348 Louvain-la-Neuve - Belgium Aim of this Study In the race for alternative fuels‚ the hydrogen solution is highly advocated : highly Its combustion produces only water and there are no formation of carbon dioxide‚ carbon monoxide or soot. However several drawbacks
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Aim To find out difference in the heat of combustion for different types of alcohols. Hypothesis The higher the number of carbon atoms in an alcohol is‚ the higher the energy for the heat of combustion. Alcohol is a homologous series‚ a series of organic compounds with similar formula and chemical properties‚ and increase in molecular size and mass. When the equations for combustion of these alcohols are listed in the order of increasing number of carbon atoms‚ Methanol 1 CH3OH(l) + 3/2 O2(g)
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PROBLEM Investigate the heat energy in a range of alcohol’s used as fuels. HYPOTHESIS I predict that octanol will release the most heat energy. This is because there is more bond energy in that molecule than the other alcohols. Within a molecule there are bond energies that are holding the atoms together. When the fuel combusts a chemical reaction takes place‚ this breaks the bonds‚ this requires energy‚ and makes new bonds this gives out energy. The energy differences between the two tell us
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Comparing the enthalpy changes of combustion of different alcohols Aim In this experiment I will investigate the enthalpy changes of combustion. In particular I will be investigating the enthalpy change of combustion for different alcohols. I hope to investigate some of the homologous series alcohols‚ as well as a few structural isomers of these alcohols. Background & theory Enthalpy cannot be measured. What we can actually measure is the enthalpy change from the reactants to the products.
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The Combustion of Diamond and Methane Methane is a hydrocarbon compound that is found in a gaseous state at room temperature. It has the chemical formula CH4‚ it is an odourless‚ colourless gas that is a large percentage of ‘natural gas’ and is a large contributor to global warming as it is a greenhouse gas and is flammable so is used as a fuel. Methane is a product of the covalent bonding of carbon and hydrogen. Products of the combustion of methane include carbon dioxide‚ water‚ soot and carbon
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Combustion of Alkanols Aim: To determine which alkanols has higher heat combustion Hypothesis: The alkanols with the longer carbon chain will a higher heat combustion Background Information: Heat combustion can be calculated by using various formulas. By using ΔH= -mcΔT‚ we can gather the amount of heat released. Since the experiment is exothermic‚ ΔH will have a negative value. By dividing the total amount by 1000‚ the units changes into KJ. Divide the total KJ of heat by the amount of fuel
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experiment is to determine which fuel‚ out of Pentane‚ Propane-1-ol and Propane-2-ol would be the most appropriate to take on a camping trip to a national park where wood cannot be used to burn. Factors that need to be considered are: • Heat of combustion (flash point) • Heat of vaporisation (boiling point) • How long the fuel will last • Does the fuel heat up the water relatively quickly • Does the fuel combust completely Hypothesis: If the tests are all successful‚ Pentane should produce a larger
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I. Title: Combustion of Acetylene II. Purpose: To prepare acetylene and determine the ratio of the volume of acetylene to the volume of oxygen for complete combustion. III. Materials: 1000 mL beaker Tap water 4 large test tubes calcium carbide (CaC2) googles and apron matches IV. Procedure: 1) Fill a 1000 mL beaker ¾ full of tap water. 2) Obtain 4 large test tubes. 3) Fill the first test tube 100% full with tap water. Fill the 2nd test tube 50% full‚ the 3rd 25% full‚ and the 4th test
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