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Words: | Submitted: Mon Feb 02 2004
... joules = grams water heated x temp rise (°C) x 4.2J/g°C. Materials: Tin can glass rod Balance ring stand Thermometer Measuring cylinder Ethanol Small spirit burner Wick Procedure: 1. The apparatus was set up. 2. 88mL of water was measured and added to the tin can. 3. The burner was half-filled with ethanol, the wick soaked, then reassembled and weighed. 4. The height of the can was adjusted so it was approximately 1cm above the wick. 5. The temperature of the water in the can was measured. 6. The burner was lit, and the water in the can stirred with the thermometer. 7. When the temperature rose about 20°C, the flame was extinguished, and the highest temperature was recorded. 8. The spirit burner was then reweighed. Observations: When the water was heated, some bubbles started to rise to the top of the beaker after a while, while no change was visible to other materials. When the spirit burner was lit a large yellow/orange flame was apparent. Results: Mass of water in can : 88 ...
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