calorimeter

calorimeter
An apparatus for measuring the amount of heat liberated in a chemical reaction. [L. calor, heat, + G. metron, measure]
- Benedict-Roth c. Benedict-Roth apparatus.
- bomb c. an instrument for determining the potential energy of organic substances, including those in foods. It consists of a hollow steel container, lined with platinum and filled with pure oxygen, into which a weighed quantity of substance is placed and ignited with an electric fuse; the heat produced is absorbed by water surrounding the bomb and, from the rise in temperature, the calories liberated are calculated.

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cal·o·rim·e·ter .kal-ə-'rim-ət-ər n any of several apparatuses for measuring quantities of absorbed or evolved heat or for determining specific heats see BOMB CALORIMETER, OXYCALORIMETER
ca·lo·ri·met·ric .kal-ə-rə-'me-trik; kə-.lȯr-ə-, -.lōr-, -.lär- adj
ca·lo·ri·met·ri·cal·ly -tri-k(ə-)lē adv
cal·o·rim·e·try .kal-ə-'rim-ə-trē n, pl -tries

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n.
any apparatus used to measure the heat lost or gained during various chemical and physical changes. For example, calorimeters may be used to determine the total energy values of different foods in terms of calories.

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cal·o·rim·e·ter (kal″ə-rimґə-tər) [calori- + -meter] an instrument for measuring the amount of heat exchanged in any system. In physiology, an apparatus for measuring the amount of heat produced by an individual.

Medical dictionary. 2011.

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Look at other dictionaries:

  • Calorimeter — Cal o*rim e*ter, n. [L. calor heat + meter; cf. F. calorim[ e]tre.] 1. (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 …   The Collaborative International Dictionary of English

  • Calorimeter — (v. lat. u. gr.), 1) so v.w. Thermometer; 2) ein von Rumford erfundenes Instrument zur Bestimmung der durch Verbrennung entstehenden Wärmemenge, indem man hierbei untersucht, um wie viel Grade eine bestimmte Quantität Wasser erwärmt wird. Es ist… …   Pierer's Universal-Lexikon

  • Calorimeter — Calorimeter, s. Wärmemesser …   Herders Conversations-Lexikon

  • calorimeter — 1794, from CALORIE (Cf. calorie) + METER (Cf. meter). A hybrid word …   Etymology dictionary

  • calorimeter — ► NOUN ▪ an apparatus for measuring the amount of heat involved in a chemical reaction or other process. DERIVATIVES calorimetric adjective calorimetry noun …   English terms dictionary

  • calorimeter — [kal΄ə rim′ət ər] n. [< L calor (see CALORIFIC) + METER] an apparatus for measuring amounts of heat, as in chemical combination, friction, etc …   English World dictionary

  • Calorimeter — This article is about heat measuring devices. For particle detectors, see Calorimeter (particle physics). The world’s first ice calorimeter, used in the winter of 1782 83, by Antoine Lavoisier and Pierre Simon Laplace, to determine the heat… …   Wikipedia

  • calorimeter — /kal euh rim i teuhr/, n. an apparatus for measuring quantities of heat. [1785 95; CALORI + METER] * * * Device for measuring heat produced during a mechanical, electrical, or chemical reaction and for calculating the heat capacity of materials.… …   Universalium

  • calorimeter — n as used in Test Method D5865, the bomb and its contents, the calorimeter vessel with stirrer, the water in which the bomb is immersed, and the portions of the thermometer and the ignition leads within the calorimeter vessel. D5865 …   Coke&Coal Terminology

  • calorimeter — kalorimetras statusas T sritis Standartizacija ir metrologija apibrėžtis Šilumos kiekio matuoklis. atitikmenys: angl. calorimeter vok. Kalorimeter, m; Wärmemengenmesser, m rus. калориметр, m pranc. calorimètre, m …   Penkiakalbis aiškinamasis metrologijos terminų žodynas

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