# Lab 7.docx - Coefficient of Linear Expansion Physics 204...

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Coefficient of Linear Expansion Physics 204 October 23, 2018 Ali Cataggio Lab Partners: Courtney O’Connor Alexa Dill Melisa Leimbach Robert Surette Hypothesis: Different substances require different amounts of heat to produce a given temperature change. This material behavior is characterized quantitatively by specific heat, which is the amount of heat necessary to raise the temperature of a mass of a substance by one unit of temperature. The specific heat is a special characteristic that changes for each material. We will be experimentally finding the specific heats of three metals and comparing them with the known specific heats we find. Equipment: Calorimeter (aluminum) Boiler and stand Hot plate Thermometers Three types of metals Balance Ice Safety glasses Strainer

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Procedure: 1. Weigh out one kind of dry metal shot. Record the mass of the metal, m m , and the room temp, T r , in the data table. 2. Insert a thermometer into a metal shot, place the cup and shot in the boiler, and start heating the boiler water. The boiler should be about half way filled up with water. Try to keep water and steam out of the dry metal container.

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