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Hess's law of constant heat summation, also known simply as Hess's law, is a relationship in physical chemistry and thermodynamics [1] named after Germain Hess, a Swiss-born Russian chemist and physician who published it in 1840. The law states that the total enthalpy change during the complete course of a chemical reaction is independent of ...
Personally, I think that Hess's law sounds much better so I would keep the title and change the text back to Hess's throughout. Dirac66 ( talk ) 12:54, 19 October 2014 (UTC) [ reply ] On further thought, I decided to check my chemistry books as sources for this law, rather than look through dictionaries and grammar books for general laws of ...
Germain Henri Hess (Russian: Герман Иванович Гесс, romanized: German Ivanovich Gess; 7 August 1802 – 12 December [O.S. 30 November] 1850) was a Swiss-Russian chemist and doctor who formulated Hess' law, an early principle of thermochemistry.
The result of Hess's meticulous work was published in the Proceedings of the Austrian Academy of Sciences, and showed the level of radiation decreased up to an altitude of about 1 kilometre (0.6 mi), but above that the level increased considerably, with the radiation detected at 5 kilometres (3.1 mi), being about twice that at sea level. [10]
Hess Corporation (NYSE:HES) and Chevron Corporation (NYSE:CVX) shares are trading higher on Tuesday. On Monday, the Federal Trade Commission (FTC) completed an antitrust review of the merger of ...
The Born–Haber cycle is an approach to analyze reaction energies.It was named after two German scientists, Max Born and Fritz Haber, who developed it in 1919. [1] [2] [3] It was also independently formulated by Kasimir Fajans [4] and published concurrently in the same journal. [1]
This means, in the case of Newton's second law, the right side would be in the form of , while in the Ehrenfest theorem it is in the form of . The difference between these two quantities is the square of the uncertainty in x {\displaystyle x} and is therefore nonzero.
Hess's law, in physical chemistry: the total enthalpy change during the complete course of a reaction is the same whether the reaction is made in one step or in several steps. Hick's law , in psychology, describes the time it takes for a person to make a decision as a function of the number of possible choices.