Calorimetry Small 320×228 Medium 640×456 Large 1024×730 Download Tiff Original 2400×1711 | (1.6 MB) Description Calorimetry is the science of measuring the heat of chemical reactions or physical changes. Calorimetry involves the use of a calorimeter. Keywords calorimeter, calorimetry Galleries Chemistry Apparatus Source: Encyclopaedia Britannica (11th ed., vol. 5) (New York, NY: The Encyclopaedia Britannica Company, 1910)