1515L - Specific Heat Determinations of Metals
In this experiment (from page 89 in Catalyst) you will use the MicroLab analysis equipment in order to accurately measure the temperature change that occurs when a piece of hot metal is added to water. Using an insulated cup (styrofoam) as a simple "calorimeter" allows you to determine the heat transferred and, through calculation, the specific heat of the metal sample.
The Introduction section in the lab manual is accurate and should be read before class, and the Procedure section should be followed as directed up to the Temperature Calibration section. Modifications to the Procedure are found here. Instructions for how to calibrate the new MicroLab thermocouple are found here. Using boiling water and a slurry of ice-water will allow you to set up the thermocouple appropriately.
MicroLab Analysis Box
The front of the box has a series of ports for different probes (many of which you will use in 1516L); you insert the thermocouple lead as shown below:
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The thermopcouple calibration is explained in detail in the document linked above. You should make sure that the ice/water mixture is tightly packed and that the heated water is actually boiling in order to get a good calibration. The basic setup for the experiment is shown below:
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When the experiment is complete, dispose of any waste, return the thermocouple to the front bench and clean up the balance room and your work area as needed.