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Le Chatelier–Braun principle analyzes the qualitative behaviour of a thermodynamic system when a particular one of its externally controlled state variables, say , changes by an amount , the 'driving change', causing a change , the 'response of prime interest', in its conjugate state variable , all other externally controlled state variables remaining constant.
Le Chatelier was born on 8 October 1850 in Paris and was the son of French materials engineer Louis Le Chatelier and Louise Durand. His father was an influential figure who played important roles in the birth of the French aluminium industry, the introduction of the Martin-Siemens processes into the iron and steel industries, and the rise of railway transportation.
According to Le Chatelier's principle, the addition of acetate ions from sodium acetate will suppress the ionization of acetic acid and shift its equilibrium to the left. Thus the percent dissociation of the acetic acid will decrease, and the pH of the solution will increase.
Henry Louis Le Chatelier develops Le Chatelier's principle, which explains the response of dynamic chemical equilibria to external stresses. [ 3 ] Paul Vieille invents Poudre B , the first smokeless powder for firearms.
Detonation was discovered in 1881 by four French scientists Marcellin Berthelot and Paul Marie Eugène Vieille [6] and Ernest-François Mallard and Henry Louis Le Chatelier. [7] The mathematical predictions of propagation were carried out first by David Chapman in 1899 [8] and by Émile Jouguet in 1905, [9] 1906 and 1917. [10]
1 Promoting Healthy Choices: Information vs. Convenience Jessica Wisdom, Julie S. Downs and George Loewenstein Contact Information: We thank the USDA Economic Research Service and the Center for Behavioral Decision
When some strong acid is added to an equilibrium mixture of the weak acid and its conjugate base, hydrogen ions (H +) are added, and the equilibrium is shifted to the left, in accordance with Le Chatelier's principle. Because of this, the hydrogen ion concentration increases by less than the amount expected for the quantity of strong acid added.
By 2003, Mallinson, then in his late teens, had been downloading and comparing Jackson and Sonic tracks for years. That September, he explained his Sonic/Jackson conspiracy theory in a post on Sonic Classic, one of the countless message board communities that dominated early-2000s Internet culture.