| 释义 |
thermoˈchemistry
[f. thermo- + chemistry.]
That branch of chemical science which deals with the quantities of heat evolved or absorbed when substances undergo chemical change or enter into solution; e.g. the amount of heat evolved when hydrogen burns in oxygen or when sodium hydroxide is neutralized by sulphuric acid. Also sometimes used in a wider sense to include all relations of heat to substances, such as conductivity, specific heat, etc.
1844Joule in L.E. & D. Philos. Mag. (1845) May 382 The phænomena described in the present paper, as well as most of the facts of thermo-chemistry, agree with this theory. 1880E. Cleminshaw Wurtz' Atom. The. 330 It is useless to bring forward in opposition to the hypothesis of atoms considerations drawn from thermo-chemistry. 1901Westm. Gaz. 16 Dec., Up to the war of 1870 his [Berthelot's] time was mainly spent on researches in the region of physical chemistry, culminating in the foundation of a new science—that of thermo-chemistry.
So thermoˈchemic, thermoˈchemical adjs., of or pertaining to thermochemistry; thermoˈchemically adv., by means of or with reference to thermochemistry; thermoˈchemist, one who is skilled in thermochemistry.
1871Thomsen in Jrnl. Chem. Soc. XXIV. 878 On the Inaccuracy of Favre and Silbermann's *Thermochemical Determinations made with the Mercury Calorimeter. 1880E. Cleminshaw Wurtz' Atom. The. 330 Thermo-chemical facts agree perfectly with the atomic hypothesis. 1901Nature 24 Oct. 644/1 A thermochemical comparison of the action of acids upon oxide of silver before and after the action of hydrogen peroxide.
1890Ibid. 18 Dec. 165/2 *Thermochemists..attempt to draw an impossible distinction between chemical and physical changes. |