单词	thermochemistry
释义	thermochemistry /θəːməʊˈkɛmɪstri / noun [mass noun] The branch of chemistry concerned with the quantities of heat evolved or absorbed during chemical reactions.This facilitated the steady advances being made in the field of thermodynamics and in thermochemistry, which is the application of thermodynamics to chemical processes.... The basic laws of thermochemistry can be expressed in terms of the change in enthalpy. This line of research was later developed by the Swiss-Russian chemist Henri Hess in the 1830s. Hess's development and extension of the work of Lavoisier and Laplace has earned him the title of father of thermochemistry. Derivatives thermochemical /ˌθəːməʊˈkɛmɪk(ə)l/ adjective ... Gases rich in hydrogen sulphide associated with thermochemical sulphate reduction are common features of petroleums found in deep reservoirs in the Gulf of Mexico and Alberta. Since 1948, the thermochemical calorie has been defined as equivalent to 4.1840 joules. However, some hydrocarbons may react with the rocks, as in the case of thermochemical sulfate reduction (discussed below).
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