Bgrafia Joseph-Louis Gay-Lsac

Contents:

• JOSEPH-LOUIS GAY-LSAC
• LOUIS JOSEPH GAY-LSAC
• JOSEPH LOUIS GAY-LSAC
• LOUIS JOSEPH GAY LSAC: BGRAFIA, NTRIBUIçõ, OBRAS, AS
• LEY GAY-LSAC
• GAY-LSAC
• LEIS GAY-LSAC
• LEY GAY-LSAC: FóRMULA, ENUNCIADO Y SCUBRIDOR

JOSEPH-LOUIS GAY-LSAC

Joseph-Louis Gay-Lsac, (born December 6, 1778, Sat-Léonard--Noblat, France—died May 9, 1850, Paris), French chemist and physicist who pneered vtigatns to the behavur of gas, tablished new techniqu for analysis, and ma notable advanc applied chemistry. Early his schoolg, Gay-Lsac acquired an tert science, and his mathematil abily enabled him to pass the entrance examatn for the newly found Éle Polytechnique, where stunts’ expens were paid by the state. At Arcueil, Berthollet was joed by the ement mathematician Pierre-Simon Laplace, who engaged Gay-Lsac experiments on pillary orr to study short-range forc.

Gay-Lsac’s approach to the study of matter was nsistently volumetric rather than gravimetric, ntrast to that of his English ntemporary John Dalton.

LOUIS JOSEPH GAY-LSAC

Another example of Gay-Lsac’s fondns for volumetric rats appeared an 1810 vtigatn to the posn of vegetable substanc performed wh his iend Louis-Jacqu Thenard. In a followg solo flight, Gay-Lsac reached 7, 016 metr (more than 23, 000 feet), thereby settg a rerd for the hight balloon flight that remaed unbroken for a half-century. In 1805–06, amid the Napoleonic wars, Gay-Lsac embarked upon a European tour wh another Arcueil lleague, the Pssian explorer Alexanr von Humboldt.

JOSEPH LOUIS GAY-LSAC

Gay-Lsac’s rearch together wh the patronage of Berthollet and the Arcueil group helped him to ga membership the prtig First Class of the Natnal Instute (later the Amy of Scienc) at an early stage his reer (1806).

Three years prevly Gay-Lsac had been appoted to the junr post of répétr at the Éle Polytechnique where, 1810, he received a profsorship chemistry that clud a substantial salary.

LOUIS JOSEPH GAY LSAC: BGRAFIA, NTRIBUIçõ, OBRAS, AS

Rivalry between Gay-Lsac and Davy reached a climax over the de experiments Davy rried out durg an extraordary vis to Paris November 1813, at a time when France was at war wh Bra. Gay-Lsac prented a much more plete study of de a long memoir prented to the Natnal Instute on Augt 1, 1814, and subsequently published the Annal chimie.

LEY GAY-LSAC

In 1815 Gay-Lsac experimentally monstrated that pssic acid was simply hydrocyanic acid, a pound of rbon, hydrogen, and nrogen, and he also isolated the pound cyanogen [(CN)2 or C2N2]. Prevly a few c trials had been rried out to timate the strength of chlore solutns bleachg, but Gay-Lsac troduced a scientific rigour to chemil quantifitn and vised important modifitns to apparat. The prcipl of volumetric analysis uld be tablished only through Gay-Lsac’s theoretil and practil geni but, once tablished, the analysis self uld be rried out by a junr assistant wh brief trag.

In 1848 (the year of revolutns) Gay-Lsac rigned om his var appotments Paris, and he retired to a untry hoe the neighbourhood of his youth that was stocked wh his library and a private laboratory. ” In a logy livered after his ath at the Amy of Scienc, his iend, the physicist Arago, summed up Gay-Lsac’s scientific work as that of “an gen physicist and an outstandg chemist.

GAY-LSAC

Amás ocupar la cátedra Fïsi en la Universidad la Sorbona y ser también tedráti Quími en el Instuto Poléi París, Gay-Lsac ocupó algunos rgos polítis cierta importancia.

Aunque fueron s ley sobre los gas las que han provodo que Gay-Lsac pasara a la historia, el científi también sarrolló otras vtigacn important. El scubrimiento Gay-Lsac tablece que en cualquier momento e proco la relación entre la temperatura absoluta y la prión mantiene un valor nstante.

LEIS GAY-LSAC

La ley Gay-Lsac se apli a los gas ial, mientras que en los real se cumple n bastante precisión si la prión y la temperatura tienen valor bajos. La novedad aportada por Gay Lsac en 1809 era relacnar los volúmen los productos y reactivos en una reacción quími n as proporcn los elementos en putos diferent. In 1804 Gay-Lsac ma several darg ascents of over 7, 000 meters above sea level hydrogen-filled balloons—a feat not equaled for another 50 years—that allowed him to vtigate other aspects of gas.

In 1808 Gay-Lsac announced what was probably his sgle greatt achievement: om his own and others’ experiments he duced that gas at nstant temperature and prsure be simple numeril proportns by volume, and the rultg product or products—if gas—also bear a simple proportn by volume to the volum of the reactants.

LEY GAY-LSAC: FóRMULA, ENUNCIADO Y SCUBRIDOR

Wh his fellow profsor at the Éle Polytechnique, Louis Jacqu Thénard, Gay-Lsac also participated early electrochemil rearch, vtigatg the elements disvered by s means.