calorimetry
Sign in to saveupright=1.2|thumb|The world's first ice-calorimeter, used in the winter of 1782–83, by Antoine Lavoisier and [[Pierre-Simon Laplace, to determine the heat involved in various chemical changes; calculations which were based on Joseph Black's prior discovery of latent heat. These experiments mark the foundation of thermochemistry.]] thumb|upright|Snellen direct calorimetry chamber, University of Ottawa thumb|Indirect calorimetry metabolic cart measuring oxygen uptake and production of a spontaneously breathing subject (dilution method with canopy hood).
Article
25 sectionsContents
- History
- Classical calorimetric calculation of heat
- Cases with differentiable equation of state for a one-component body
- Basic classical calculation with respect to volume
- Classical theory for constant-volume (isochoric) calorimetry
- Classical heat calculation with respect to pressure
- Calorimetry through phase change, equation of state shows one jump discontinuity
- Cumulation of heating
- Mathematical aspects of the above rules
- Physical scope of the above rules of calorimetry
- Experimentally conveniently measured coefficients
- Pressure increase at constant volume
- Expansion at constant pressure
- Compressibility at constant temperature
- Relation between classical calorimetric quantities
- Connection between calorimetry and thermodynamics
- Special interest of thermodynamics in calorimetry: the isothermal segments of a Carnot cycle
- Special interest of calorimetry in thermodynamics: relations between classical calorimetric quantities
- Relation of latent heat with respect to volume, and the equation of state
- Difference of specific heats
- Practical constant-volume calorimetry (bomb calorimetry) for thermodynamic studies
- See also
- References
- Books
- External links
upright=1.2|thumb|The world's first ice-calorimeter, used in the winter of 1782–83, by Antoine Lavoisier and [[Pierre-Simon Laplace, to determine the heat involved in various chemical changes; calculations which were based on Joseph Black's prior discovery of latent heat. These experiments mark the foundation of thermochemistry.]] thumb|upright|Snellen direct calorimetry chamber, University of Ottawa thumb|Indirect calorimetry metabolic cart measuring oxygen uptake and production of a spontaneously breathing subject (dilution method with canopy hood).
In chemistry and thermodynamics, calorimetry () is the science or act of measuring changes in state variables of a body for the purpose of deriving the heat transfer associated with changes of its state due, for example, to chemical reactions, physical changes, or phase transitions under specified constraints. Calorimetry is performed with a calorimeter. Scottish physician and scientist Joseph Black, who was the first to recognize the distinction between heat and temperature, is said to be the founder of the science of calorimetry.