This article is about heat measuring devices. For particle detectors, see Calorimeter (particle physics).
Not to be confused with Colorimeter (chemistry).
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The world's first ice-calorimeter, used in the winter of 1782–83, by Antoine Lavoisier and Pierre-Simon Laplace, to determine the heat evolved in various chemical changes; calculations which were based on Joseph Black's prior discovery of latent heat. These experiments mark the foundation of thermochemistry.
A calorimeter is a device used for calorimetry, or the process of measuring the heat of chemical reactions or physical changes as well as heat capacity. Differential scanning calorimeters, isothermal micro calorimeters, titration calorimeters and accelerated rate calorimeters are among the most common types. A simple calorimeter just consists of a thermometer attached to a metal container full of water suspended above a combustion chamber. It is one of the measurement devices used in the study of thermodynamics, chemistry, and biochemistry.
To find the enthalpy change per mole of a substance A in a reaction between two substances A and B, the substances are separately added to a calorimeter and the initial and final temperatures (before the reaction has started and after it has finished) are noted. Multiplying the temperature change by the mass and specific heat capacities of the substances gives a value for the energy given off or absorbed during the reaction. Dividing the energy change by how many moles of A were present gives its enthalpy change of reaction.
where q is the amount of heat according to the change in temperature measured in joules and Cv is the heat capacity of the calorimeter which is a value associated with each individual apparatus in units of energy per temperature (joules/kelvin).
Differential scanning calorimeters, isothermal micro calorimeters, titration calorimeters and accelerated rate calorimeters are among the most common...
A calorimeter constant (denoted Ccal) is a constant that quantifies the heat capacity of a calorimeter. It may be calculated by applying a known amount...
and Applied Spectroscopy. The first adiabatic differential scanning calorimeter that could be used in biochemistry was developed by P. L. Privalov and...
are two basic calorimeter systems: an inner electromagnetic calorimeter and an outer hadronic calorimeter. Both are sampling calorimeters; that is, they...
A cone calorimeter is an instrument used to study the behavior of fire in small samples of condensed phase materials. It is widely used in the field of...
A reaction calorimeter is a calorimeter that measures the amount of energy released (in exothermic reactions) or absorbed (in endothermic reactions) by...
Strange Object Research") is an electromagnetic (EM) and hadronic (HAD) calorimeter of the CMS experiment at CERN. It is based on plates made out of tungsten...
calorimeter, also called bomb calorimeter Constant-pressure calorimeter, enthalpy-meter, or coffee cup calorimeter Differential Scanning Calorimeter Reaction...
is placed inside the calorimeter for the measurement. A widely used modern instrument is the differential scanning calorimeter, a device which allows...
measured using calorimetry, e.g. with a bomb calorimeter. One common laboratory instrument is the reaction calorimeter, where the heat flow from or into the...
a graph from which fundamental quantities can be calculated. Modern calorimeters are frequently supplied with automatic devices to provide a quick read-out...
A thermometric titration is one of a number of instrumental titration techniques where endpoints can be located accurately and precisely without a subjective...
introduced commercially by MicroCal Inc. in 1988. Compared to other calorimeters, ITC has an advantage in not requiring any correctors since there was...
is used as a spacer between layers of lead in the ATLAS Liquid Argon Calorimeter, and as a laminate core for hull and deck construction in custom boats...
electrolysis experiments using a palladium cathode and heavy water within a calorimeter, an insulated vessel designed to measure process heat. Current was applied...
spectrometer in 1995, the transition radiation detectors in 1999 to a large jet calorimeter added in 2007. ALICE recorded data from the first lead-lead collisions...
condense. The high heat values are conventionally measured with a bomb calorimeter. Low heat values are calculated from high heat value test data. They...
a scintillating crystal electromagnetic calorimeter, which is itself surrounded with a sampling calorimeter for hadrons. The tracker and the calorimetry...
used to construct quasi-homogeneous electromagnetic calorimeters. A notable example is the calorimeter of the NA48 experiment at CERN containing about 27...
particles (WIMPs).[2][3] A calorimeter is a device that measures the amount of heat deposited in a sample of material. A calorimeter differs from a bolometer...
warmer to colder bodies. Indeed, Lavoisier was one of the first to use a calorimeter to measure the heat released during chemical reaction. Lavoisier presented...
laboratories, benzoic acid is a common standard for calibrating a bomb calorimeter. Benzoic acid occurs naturally as do its esters in many plant and animal...
e., glucoses stuck together in long chains), and can be burned in a calorimeter (a common method of determining calorie content), but the human body...
level is the top of the food chain. Biomass can be measured by a bomb calorimeter. A pyramid of energy or pyramid of productivity shows the production...
CDF uses two types of calorimeters: electromagnetic calorimeters and hadronic calorimeters. The electromagnetic calorimeter measures the energy of light...
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