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The aim of this experiment is to calculate the enthalpy change in various alcohols.
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CHEMISTRY 3: Energy, rate and extent of reaction AIM The aim of this experiment is to calculate the enthalpy change in various alcohols. HYPOTHESIS Energy is produced when a fuel is burned. The fuel can be used to heat water in a calorie meter. In order to calculate the energy produced by the fuel, the mass, specific heat capacity and temperature of the water need to be known. The enthalpy change can then be calculated using the following formula: ?H=mc?t Where ?H=Enthalpy change, m=mass, c=specific heat capacity, and ?t=change in temperature. Specific heat capacity is the energy needed by one gram of a substance to raise its temperature by 1°K. The specific heat capacity of water is a standard of 4.2J/gk. In this experiment, the fuel to be used is alcohol. Seven different alcohols will be used. The general formula of an alcohol is CnH2n+1OH. The individual formulas are: methanol CH3OH ethanol C2H5OH propanol C3H7OH butanol C4H9OH pentanol C5H11OH hexanol C6H13OH octanol C8H17OH The reaction that is involved in burning alcohols is exothermic,...
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