PhyLab5 - PHY 112 Thermodynamics: Specific & Latent...

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PHY 112 In this laboratory, we examined the specific heats of various metals and determined the latent heat of water. The most fundamental law that defined this lab was the conservation of energy. This states that the energy in an isolated system remains constant, but it can change form (i.e. from kinetic to thermal energy). From this law we derived the following equation to determine the amount of heat gained and lost in our experiments with the various metals: Total E = Q gain + Q loss OR (C metal m metal ΔT) + (C water m water ΔT) = 0 We also know that these must add to zero from the conservation of energy law. From these equations and our experimental data we found that our first metal was most likely copper as we calculated a specific heat of approximately 388 J/kgC ° (although possibly zinc or brass since they both have very similar specific heats, 385, 385, and 390 respectively). We also concluded that our second metal was aluminum as we got a
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PhyLab5 - PHY 112 Thermodynamics: Specific & Latent...

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