A calorimeter is used to perform calorimetry.Calorimetry is the study or act of monitoring changes in a body's state variables in order to calculate the heat transfer associated with changes in its state caused by chemical processes, physical changes, or phase transitions under defined constraints.The heat required to increase the temperature of 1 kilogram of water by 1 K, for example, is 4184 joules, hence the specific heat capacity of water is 4184 J kg -1K -1.Specific heat capacity is measured in joules per kelvin per kilogram (J kg -1 K -1).It is the quantity of heat that must be supplied to one unit of mass of the substance to create a temperature rise of one unit.The specific heat capacity (symbol c) of a substance is the heat capacity of a sample of the substance divided by its mass, also known as massic heat capacity or specific heat.
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