Crossword clues for calorimeter
The Collaborative International Dictionary
Calorimeter \Cal`o*rim"e*ter\, n. [L. calor heat + -meter; cf. F. calorim[`e]tre.]
(Physiol.) An apparatus for measuring the amount of heat contained in bodies or developed by some mechanical or chemical process, as friction, chemical combination, combustion, etc. For combustion processes, a bomb calorimeter may be used.
(Engineering) An apparatus for measuring the proportion of unevaporated water contained in steam.
Douglas Harper's Etymology Dictionary
1794, from calorie + -meter. A hybrid word.
Wiktionary
n. (context physics English) An apparatus for measuring the heat generated or absorbed by either a chemical reaction, change of phase or some other physical change.
WordNet
n. a measuring instrument that determines quantities of heat
Wikipedia
A calorimeter is an object 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 microcalorimeters, 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.
To find the enthalpy change per mole of a substance A in a reaction between two substances A and B, the substances are added to a calorimeter and the initial and final temperatures (before the reaction 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. This method is used primarily in academic teaching as it describes the theory of calorimetry. It does not account for the heat loss through the container or the heat capacity of the thermometer and container itself.
In particle physics, a calorimeter is an experimental apparatus that measures the energy of particles. Most particles enter the calorimeter and initiate a particle shower and the particles' energy is deposited in the calorimeter, collected, and measured. The energy may be measured in its entirety, requiring total containment of the particle shower, or it may be sampled. Typically, calorimeters are segmented transversely to provide information about the direction of the particle or particles, as well as the energy deposited, and longitudinal segmentation can provide information about the identity of the particle based on the shape of the shower as it develops. Calorimetry design is an active area of research in particle physics.
Usage examples of "calorimeter".
It's a big barrel-shaped superconducting solenoid coil with elaborate wire chambers on the inside and layers of calorimeters and muon detectors on the outside.
Wesley and I spent the rest of the afternoon in the Materials Analysis Unit, with its gas chromatographs, mass spectrometers, differential scanning calorimeters, and other intimidating instruments for determining materials and melting points.