94%(17)16 out of 17 people found this document helpful
This preview shows page 1 - 5 out of 7 pages.
The preview shows page 4 - 5 out of 7 pages.
Enthalpy and Specific HeatJune 10, 2019TOTAL:30 points
Atmiya R. SolankiEnthalpy and Specific HeatPage 2 of 7CHM 113 POST-LABEnthalpy and Specific Heat1.Insert ONE picture of yourself in full PPE here (include the hot pad).**Remember to (1) show your full bodyso that we see you are wearing shoes; (2) wear yoursafety glasses, apron and gloves; (3) cover your arms and lower legs (socks are notoptional, even in Arizona); (4) tie back long hair in a ponytail or a bun; (5) remove jewelry.
Atmiya R. SolankiEnthalpy and Specific HeatPage 3 of 72.Completethe following table with your experimental data for the masses of the water andthe unknown metal strip in Part 1.Table 1:Mass DataMass (g)Trial 1Trial 2Trial 3Water48.3 g50.2 g50.0gMetal Strip19.2 g19.2 g19.2 g3.Completethe following table with your experimental data for the temperature changes forthe water in your calorimeter in Part 1, and calculate the temperature change (ΔT) for eachtrial.Show your work below the table and include units.∆T=Tfinal−TinitialTable 2:Specific Heat DataTime (minutes)Temperature (°C)Trial 1Trial 2Trial 3Initial24.224.324.11 minute29.526.827.22 minutes28.227.027.43 minutes220.127.116.11 minutes27.027.127.65 minutes26.927.027.6ΔT18.104.22.168Calculations of ΔTTrial 1: 26.9 – 24.2 =2.7 °CTrial 2: 27.0 – 24.3 =2.7 °CTrial 3: 27.6 – 24.1 =3.5 °C
Atmiya R. SolankiEnthalpy and Specific HeatPage 4 of 7