Dynamic calorimetry for students

Abstract

A student experiment on dynamic calorimetry is described. Dynamic calorimetry is a powerful technique for calorimetric studies, especially at high temperatures and pressures. A low-power incandescent lamp serves as the sample. The ScienceWorkshop data-acquisition system with DataStudio software from PASCO Scientific displays the results of the measurements and calculations. During a 15 ms heating run, the heating rate amounts to 100 000 K s−1. In one run, the specific heat of tungsten is determined in a temperature range encompassing more than 1000 K.