Which Fuel Releases the Most Energy Per Mole Measure by Heating Water :: Papers

Which Fuel Releases the Most Energy Per Mole Measure by Heating Water Hypothesis In this investigation I will burn alcohols to heat up a beaker of water. I will be burning five fuels which are called Methanol, Ethanol, Propanol, Butanol and Pentanol. In my investigation I predict that the alcohol Pentanol would release more energy than the other alcohols because as the chain length of the alkanes get longer, the more energy is released. Apparatus  · Retort stand  · Clamp  · Measuring cylinder  · Thermometer  · Heatproof mats  · Copper can  · Splint  · Chemicals(Methanol, Ethanol, Propanol, Butanol and Pentanol) Independent variables  · Using the same scales  · Same amount of water in copper beaker  · Same height of thermometer from water  · Temperature of water before experiment  · Weight of alcohol before experiment Fair Test To make it a fair test:  · I made sure I put the same amount of water in the copper can.  · I made sure that the water started with the same temperature with the same alcohol.  · I made sure that the height was the same from the water to the thermometer. Health and Safety  · Wear goggles  · Hide tie in the shirt  · Keep bags under the table Method I first got all the apparatus that I needed and set it up. I got a measuring cylinder and measured a 100 cm ³ of water and poured it in a copper can. Then I connected the copper can to the stand with a clamp. Then I would get a spirit lamp which is filled with alcohol and measure it. Then I would use a spirit to light it and put it under the copper can. Then I would heat and stir the water until the temperature has gone up another 10 degrees Celsius. I will then blow out the flame and put the cap on the burner quickly and reweigh the alcohol.