calorimeter (kalorimeter)

[L. cal or, & An heat, + metrum, apparatus aratus for measuring the quantity of heat given off by a body body under different conditions: used in determining the specific heat of different substances, the latent heat of fusion, expansion, or vaporization, and the heat of combustion, or of chemical combination in general. In the ice-calorimeter the substance to be operated on is inclosed in a cavity of ice, and the quantity of heat is determined by observing the increase of volume due to the melting of a portion of the ice. In other forms the rise in temperature of a known quantity of some liquid, as water or mercury, or the amount of expansion caused in a known volume of mercury, is noted. calorimetric, calorimetrical (kal"ō-ri-met'rik, -ri-kal), a. Of or belonging to the calorimeter or to calorimetry. There are two methods of measuring the intensity of a beam of light: 1. Calorimetrical . 2. Photo metrical. A. Daniell , Prin. of Physics, p. 463. calorimetrically (kal"ō-ri-met'ri-kal-i), adv. By means of the calorimeter; in accordance with the principles and methods of calorimetry. The total intensity of radiation may be measured calo rimetrically. A. Daniell, Prin. of Physics, p. 463.