Joseph Louis Gay-Lsac | Science History Instute

Contents:

• JOSEPH-LOUIS GAY-LSAC
• JOSEPH LOUIS GAY-LSAC
• JOSEPH LOUIS GAY-LSAC BGRAPHY
• LOUIS JOSEPH GAY-LSAC
• JOSEPH GAY-LSAC SUMMARY
• SCIENTIST OF THE DAY - JOSEPH LOUIS GAY-LSAC
• JOSEPH LOUIS GAY-LSAC AND HIS WORK ON GAS
• GAY MOSW MOSW CY GUI
• THE 5 BEST MOSW GAY CLUBS & BARSGAY CLUBS & BARS MOSW
• GAY MOSW · CY GUI
• JOSEPH LOUIS GAY-LSAC FACTS FOR KIDS
• BGRAPHY:JOSEPH LOUIS GAY-LSAC
• GAY-LSAC’S LAW
• JOSEPH LOUIS GAY-LSAC BGRAPHY, LIFE, INTERTG FACTS

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. 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. 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).

JOSEPH LOUIS GAY-LSAC

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. 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.

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]. Begng 1816, Gay-Lsac served as the jot edor of the Annal chimie et physique, a posn he shared wh his former Arcueil lleague François Arago. 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.

JOSEPH LOUIS GAY-LSAC BGRAPHY

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.

LOUIS JOSEPH GAY-LSAC

Gay-Lsac published an entire seri of Instctns on subjects rangg om the timatn of potash (1818) to the nstctn of lightng nductors. 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.

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.

JOSEPH GAY-LSAC SUMMARY

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. 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.

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. Gay-Lsac prentó en enero 1803, cuando solo ntaba n 23 años, su primer trabajo importante: Invtigacn sobre la dilatación l gas.

SCIENTIST OF THE DAY - JOSEPH LOUIS GAY-LSAC

La llamada Ley Charl y Gay-Lsac relacna el volumen y la temperatura una ntidad gas ial que se mantiene a una prión nstante. El scubrimiento Gay-Lsac tablece que en cualquier momento e proco la relación entre la temperatura absoluta y la prión mantiene un valor nstante.

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. Al igual que ocurrió n las vtigacn sobre el boro, Gay-Lsac y Humphry Davy volvieron a cidir a la hora prentar un hallazgo sobre el cloro. 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.

JOSEPH LOUIS GAY-LSAC AND HIS WORK ON GAS

Joseph Louis Gay-Lsac (/ˌɡeɪləˈsæk/; French: [%CA%92%C9%94z%C9%9Bf lwi ɡɛlysak]; also Louis Joseph Gay-Lsac; 6 December 1778 – 9 May 1850) was a French chemist and physicist.

He is known mostly for his disvery that water is ma of two parts hydrogen and one part oxygen (wh Alexanr von Humboldt), for two laws related to gas, and for his work on alhol-water mixtur, which led to the gre Gay-Lsac ed to measure alholic beverag many untri. Gay-Lsac is well known to morn chemists for two laws, one relatg the volume of a gas to s temperature (volume creas learly wh temperature), and the send, lled the law of bg volum, which stat that when two gas be, their volum are the rats of small whole numbers.

GAY MOSW MOSW CY GUI

The law of bg volum uld be ed to support John Dalton's atomic theory, published the very same year, for if water nsists of two atoms of hydrogen and one of oxygen, then one might well expect that you would need two volum of hydrogen for every one of oxygen (assumg that equal volum of gas nta equal numbers of particl, and Amao Avogadro would offer this up as his own law, Avogadro's hypothis, 1811) the non-chemist, Gay-Lsac's reer as a balloonist might be of more tert. Wh fellow chemist Jean-Baptiste Bt, Gay-Lsac ma a balloon ascent of some 4 1804, llectg atmospheric sampl all the way, and the next year he ma a solo ascent and went even higher, settg an altu rerd of some 23, 000 feet that would stand for another 60 years.

He also termed that the posn of the atmosphere do not change wh 1867, Louis Figuier published an image of the Bt/Gay-Lsac ascent that has proved que endurg balloong lore (send image); the illtratn has been much pied, even appearg on a tea rd (first image). He is known mostly for two laws related to gas, and for his work on alhol-water mixtur, which led to the gre Gay-Lsac ed to measure alholic beverag many untri.

In November 1794 he went to Paris; due to fame many pupils were sent back home to their parents – Gay-Lsac was allowed to stay bee of his good mathematil skills. [3] They were able to measure a temperature drop of 1 °C per 174 metr of altu ascent, and Gay-Lsac and Alexanr von Humboldt were able to refute John Dalton‘s ia that atomic heavier gas sk, lighter atomic gas rise, and that the posn the higher atmosphere chang as a rult.

THE 5 BEST MOSW GAY CLUBS & BARSGAY CLUBS & BARS MOSW

In 1808 Gay-Lsac beme profsor of practil chemistry at the Éle polytechnique Paris 1808 and simultaneoly profsor of physics and chemistry at the Sorbonne, a post which he only rigned for the chair of chemistry at the Jard s Plant. In 1830 Gay-Lsac was elected a foreign member of the Göttgen Amy of Science and 1832 he was elected to the Amerin Amy of Arts and Scienc. Some well known scientists (Amontons, Lambert, Charl) had already prepared the Gay-Lsac law, but they had not yet termed the gree of expansn of the gas precisely enough.

In 1807, Gay-Lsac rried out temperature experiments wh two rooms of equal size, nnected by a pipe and separable om each other. Sce 1808 Gay-Lsac and Louis Jacqu Thénard tried to produce pure potassium and sodium om potassium hydroxi and sodium hydroxi, rpectively, g a voltic pile. Joseph Louis Gay-Lsac (December 6, 1778 – May 9, 1850) was a French chemist and physicist whose disvery of the law of bg volum of gas chemil reactns paved the way for our unrstandg of molecul and atoms.

GAY MOSW · CY GUI

In 1789, at the begng of the French Revolutn, his parents found necsary to keep Gay-Lsac at home, where he received his early tn. Gay-Lsac and fellow scientist Jean-Baptiste Bt were missned by the French ernment, at the stigatn of Berthollet and Laplace, to make an ascent a hot air balloon to take measurements of the earth's magic field and perform other experiments. In orr to take readgs at even greater heights, Gay-Lsac ma another ascent, this time alone, and was able to achieve an elevatn of seven thoand meters, a rerd for that time.

Durg this ascent, Gay-Lsac was able to brg back sampl of air, and found their posn to be the same as the air at the earth's surface. In 1805, Gay-Lsac acpanied Alexanr von Humboldt on a year-long tour of Europe, durg which he met many of the famo scientists of his day, cludg Alsandro Volta. Among the memoir published by the society clud Gay-Lsac's magic measurements ma durg his European tour, as well as work that he is perhaps bt remembered for, which he formulated what is today generally referred to Gay-Lsac's law of bg volum.

Gay-Lsac extend his observatns to other gas, and noted that, when bg wh one another, they always do so by volume simple tegral rats.

JOSEPH LOUIS GAY-LSAC FACTS FOR KIDS

On the basis of Dalton's and Gay-Lsac's work, Ameo Avogadro proposed the hypothis that equal volum of gas nta equal volum of molecul, one of the rnerston of morn chemistry.

From 1808 Gay-Lsac was appoted profsor of physics at the Sorbonne, and 1809 he also beme profsor of chemistry at the Polytechnique.

BGRAPHY:JOSEPH LOUIS GAY-LSAC

In 1815, Gay-Lsac rried out some important rearch on de and s pounds, although Brish scientist Humphrey Davy is generally creded wh havg intified de as an element.

In 1824, Gay-Lsac played host to the young Liebig, who remaed at Gay-Lsac's laboratory for about six weeks vtigatg pssic acid. Liebig went on to tablish a laboratory where he ted an entire generatn of chemists, based on what he had learned Gay-Lsac's laboratory.

GAY-LSAC’S LAW

Gay-Lsac often allowed young scientists to work his laboratory, and this way traed many of the famo nam that succeed him his rearch. In 1802, Gay-Lsac first formulated the law that a gas expands learly wh a fixed prsure and risg temperature (ually better known as Law of Charl and Gay-Lsac). The law is often attributed to Jacqu Charl bee Gay-Lsac mentned some experiments Charl had done monstratg the law particular s.

However, Gay-Lsac announced as a general law, and provid more exactg experimental data to bolster his ncln, than eher Charl or Dalton.

The proper pennce of the expansn efficient on the temperature self was also exprsed rrectly by Gay-Lsac, a rult that Dalton's more c experiments failed to tect. Gay-Lsac's rults were exprsed as the expansn of gas for a temperature difference equal to that of the eezg and boilg pots of water.

JOSEPH LOUIS GAY-LSAC BGRAPHY, LIFE, INTERTG FACTS

In 1808, Gay-Lsac and Louis-Jacqu Thenard succeed isolatg what they lled the radil of boric acid, not yet aware that was an element. In 1815, the rivalry that had been generated between Gay-Lsac and Davy over the disvery of elements once aga surfaced a qut to terme the nature of what would bee known as de.