Physics lab report

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Enwru7

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The experiment was " specific heat of metal " .


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PHYS 164 LAB #13 Specific Heat of a Metal DATA PRELIMINARY DATA TR = 24 ± 0.5 oC Room Temperature mc = 46 ± 0.1 g Mass of Calorimeter cc = 0.22 ± 0.01 cal/g-oC Specific Heat of Aluminum METAL 1: Masses (g) mx = Temperatures (oC) 90 ± 0.1 Tx = 95 ± 5 m(c+w) = 152.5 ± 0.1 Tw = 15 ± 1 mw = 109.5 ± 0.1 Te = 26 ± 1 METAL 2: Masses (g) Temperatures (oC) mx = 248 ± 0.1 Tx = 95 ± 5 m(c+w) = 154 ± 0.1 Tw = 15 ± 1 mw = 108 ± 0.1 Te = 29 ± 1 METAL 3: Masses (g) Temperatures (oC) mx = 348 ± 0.1 Tx = 95 ± 5 m(c+w) = 140 ± 0.1 Tw = 15 ± 1 mw = 94 ± 0.1 Te = 25 ± 1 PHYS 164 LAB #13 Specific Heat of a Metal ANALYSIS Calculation of Specific Heats and Uncertainties Assume the uncertainites in m and c can be ignored Identify the type of metal in the appropriate cell METAL 1: high cx = 0.19 ± 0.066 cal/g-oC low 0.252001479 0.120666072 METAL 2: high cx = 0.090 ± 0.021 cal/g-oC 0.035 ± 0.01 cal/g-oC low 0.114583501 0.07165184 METAL 3: high cx = low 0.045629333 0.025831726 TABLE I. Summary of Results Metal cexp ± cacc ± % diff Agree? Aluminum 0.191 0.066 0.22 0.01 15% Yes Iron 0.09 0.021 0.093 0.01 3% Yes Lead 0.035 0.01 0.031 0.01 12% Yes
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