phy 1.11[1]

# phy 1.11[1] - Kimberly DeVivo Partner: Emily Dernbach &...

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Kimberly DeVivo February 7, 2011 Dr. A. Karpf Experiment 1 Heat of Fusion of Water I ABSTRACT During the first part of the Experiment the main objective was to determine the Heat of Fusion. This was done by adding ice an aluminum cup filled with a determined mass of water and recording the temperature difference from start to finish. The outcome of this experiment was very near the theoretical determined heat of fusion because our percent error was fairly low for most trials. The second part of the experiment was to look at heat transfer from an insulated cup with hot water to another insulated cup with cooler water via a conductive metal bar. II INTRO Heat of fusion is the amount of heat that must be added to one kg of solid in order to turn it into a liquid. During the first experiment the heat of fusion was able to be measured. This was done because we knew certain variables that calculated to the answer using the equation H f =(m c c c T + m w c w T –m i c w T)/m i . In this equation H f is the heat of fusion, m c is the mass of the cup, c c is the specific heat cap capacity of the cup, T is the change in temperature, m w is the mass of the water, c w is the specific heat capacity of the water, and m i is the mass of the ice. This equation was able to be used because everything except the heat of fusion was able to be measured, using a scale or thermometer, and the specific heats where give as a know values. III PROCEDURE The second part of the experiment was set up first. This was done by adding hot water to cup one and then adding the same amount of cooler water to cup number two. Next a foam top went on each of the tops of the insulated cups. In the foam were slits two put a thermometer into each cup as well as a metal bar to transfer the heat energy. Then the initial temperature was taking and recorded and then the final temperature was Page 1 of 5

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recorded 5 minutes later. The average temperature was calculated from the initial temperatures to see if it was
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## This note was uploaded on 10/02/2011 for the course EDUCATION 471 taught by Professor Verma during the Spring '11 term at Adelphi.

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phy 1.11[1] - Kimberly DeVivo Partner: Emily Dernbach &...

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