calorimetry In any process of heat transfer between objects at different temperatures, the sum of heat changes for all objects is zero. The heat change is calculated  by  multiplying,  mass  of the object, difference in temperature and the specific heat* of the object. Using  this  principle  specific heat of different materials  can be determined using a calorimeter. A calorimeter is a  copper  container that is insulated and provided with a thermometer and a stirrer. The specific heat being very important parameter, more accurate measurements are done using modern calorimeters. The sample is suspended by nylon thread in highly evacuated chamber and it is heated electrically. The temperature is measured using a thermocouple or platinum thermometer.