Latent Heat of Fusion

1111 WordsApr 16, 20125 Pages
Sameera Raziuddin Latent Heat of Fusion April 11, 2011 Abstract: A calorimeter, water at room temperature, ice, and a Pasco GLS Explorer were used in combination with a known value of the latent heat of fusion to create and carry out an experiment to determine the mass of an unknown amount of ice. Using the formula for latent heat of fusion, the mass of the ice was calculated to be 45.76g. The error of the carried out experiment was calculated to be 20.06%. Introduction: A substance requires energy to change from one phase state to another, or in other words, when it goes from either a solid to liquid or liquid to gas. The potential energy that is stored between molecules of the substance needs to be overcome…show more content…
Record the temperature of the room temperature water 5. Put ice in the calorimeter 6. Place the cap on the calorimeter and stir the water 7. Record the equilibrium temperature of the water after the ice melts 8. Mass the cup, stirrer, water, and melted ice Works Cited: https://oncourse.iu.edu/portal/site/SP11-NW-PHYS-P222-2272/page/fac7289e-7079-4ff8-ac99-452663584e http://scienceworld.wolfram.com http://www.splung.com Data & Results: FORMULAS RESULTS Calculated mass of ice = 45.76g Calculated error = 20.06% Conclusion: A substance requires energy to change from one phase state to another, or in other words, when it goes from either a solid to liquid or liquid to gas. The energy required to change the phase of a substance is known as a latent heat; the word latent means hidden. When the substance transforms from the solid phase to the liquid phase, the latent heat of fusion must be used. The specific latent heat of fusion measures the amount of heat energy required to change 1 kg of a solid into a liquid. A calorimeter, water at room temperature, ice, and a Pasco GLS Explorer were used in combination with a known value of the latent heat of fusion to successfully create and carry out an experiment to determine the mass of an unknown amount of ice. Warm, room temperature water was massed in the pre-weighed calorimeter cup to determine the mass of the water. An initial temperature of the water was recorded. An

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