Hot- and Cold- Packs Lab Report

Hot- and Cold- Packs Lab Report - Hot and Coldpacks by...

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Hot- and Coldpacks by Julian Remouns Lab Instructor: Bob Neumann February 11, 2008
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Results and Discussion: Week 1: Part 1 The heat capacity of a coffee cup calorimeter was calculated by first creating a coffee cup calorimeter made of three styrofoam cups. To find the heat capacity of the calorimeter, cold (room temperature) water was measured and poured into the calorimeter. The stabilized temperature was recorded. A second mass of water was heated in a beaker on a hotplate until the temperature increased by a few degrees. The hot water was then added to the cold water in the calorimeter and the change in temperature was recorded after the temperature stabilized. Using these results, the heat capacity of the calorimeter was calculated. Five trials were performed in the experiment, and the results are calculated in Table 1 . Table 1: Specific Heat Capacity of Coffee Cup Calorimeter Trial # Mass of cold water (g) Mass of hot water (g) Initial temperatur e of cold water + calorimeter ( ° C) Initial temperatur e of hot water ( ° C) Final temperatur e of calorimeter ( ° C) C calorimeter (J/ ° C) 1 53.047 66.481 23.2 31.5 27.3 63 2 51.925
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This note was uploaded on 05/25/2008 for the course CHEM 2080 taught by Professor Davis,f during the Spring '07 term at Cornell.

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Hot- and Cold- Packs Lab Report - Hot and Coldpacks by...

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