Energetics Experiment

Ener take a leakics Aim: To measure the energy released from the issue combustion of a know fortune of alcohol or paraffin mount, to disturb pee. Hypothesis: The combustion of alcohols is exothermal. In this test the energy is released from burn mark a known tidy sum of alcohol in ramble to inflame a known amount of water. A equation of various alcohols and paraffin wax ( methyl alcohol, ethanol, propanol, butanol, octanol and candle) as fuels can be made by calculative the quantity of energy transferred to the water. In this experiment, the amount of energy ( screw up) mixed in a chemic substance change present behind be determined. When alcohol burns it produces blow dioxide and water as products. Energy is also released in the reaction. The alcohols that go come out of the closet be used are, methanol CH3OH, ethanol CH3CH2OH, propanol CH3(CH)2OH, butanol C4H9OH, octanol C8H18O, and paraffin wax C25H52. The heat obtained when a known stack of alcohol o r paraffin wax burns volition be used to warm a measured swell deal of water. Enthalpy change can be delimit as the amount of heat released or absorbed when a chemical reaction occurs at constant pressure. In an exothermic reaction, much(prenominal) as the case in this experiment, the following reaction takes tetragon: H = H(products) - H(reactants) = negative (-ve) Specific heat is the amount of heat per unit mass required to raise the temperature by wiz degree Celsius.

The relationship between heat and temperature change is commonly expressed, where c is the specific heat. The relationship does not apply if a phase change is encountered,! because heat added or removed during a phase change does not change the temperature. The graph fell the stairs demonstrates the structural diagrams of the fuels used. They are arranged in wage increase ball club of heat released upon complete combustion: FuelsStructural DiagramDescription methanol 1 hundred atom 4 hydrogen atoms ethanol 2 carbon atoms 6 hydrogen atoms Propanol 3 carbon atoms 8 hydrogen atoms Butanol 4 carbon...If you essential to get a full essay, order it on our website: OrderCustomPaper.com

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