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Glass is far inferior to paper, plastic and Styrofoam in terms of insulation. Thermal conductivity in terms of BTU/(feet - hour - degrees F) is 1.82 for glass, 0.09 for paper, 0.06 for Styrofoam. The conductivity of plastics varies depending on the materials: for polypropylene and polycarbonate, the thermal conductivity values are 0.69 and 0.35, respectively.
In this experiment, the calorimeter is defined as two nested styrofoam cups, the lid, magnetic stir bar, and the temperature probe tip, plus the 60.0 m L l of the reaction mixture (mainly water).his experiment has three primary objectives: 1. Find the heat capacity (Cp) of a calorimeter and contents (calibration). 2. Determine the D Hrxn, the enthalpy of reaction, for several different reactions, including the reaction of an unknown with a solution of HCl.