J. L. Gay-Lsac (1778–1850) | Nature

Contents:

• JOSEPH LOUIS GAY-LSAC
• JOSEPH GAY-LSAC SUMMARY
• SCIENTIST OF THE DAY - JOSEPH LOUIS GAY-LSAC
• JOSEPH LOUIS GAY-LSAC
• J. L. GAY-LSAC (1778–1850)
• JOSEPH-LOUIS GAY-LSAC
• GAY-LSAC'S GAS LAW EXAMPL
• JOSEPH-LOUIS GAY-LSAC
• JOSEPH LOUIS GAY-LSAC
• CATEGORY:JOSEPH LOUIS GAY-LSAC
• JOSEPH LOUIS GAY-LSAC
• SCIENTIST OF THE DAY - JOSEPH LOUIS GAY-LSAC
• GAY-LSAC’S LAW

JOSEPH LOUIS GAY-LSAC

French chemist Joseph Louis Gay-Lsac proposed two fundamental laws of gas the early 19th century.

JOSEPH GAY-LSAC SUMMARY

While one is generally attributed to a fellow untryman, the other is well known as Gay-Lsac’s law.

SCIENTIST OF THE DAY - JOSEPH LOUIS GAY-LSAC

Joseph Louis Gay-Lsac (1778–1850) grew up durg both the French and Chemil Revolutns. Gay-Lsac’s own reer as a profsor of physics and chemistry began at the Éle Polytechnique.

JOSEPH LOUIS GAY-LSAC

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.

J. L. GAY-LSAC (1778–1850)

This ncln subsequently beme known as Gay-Lsac’s law. 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. Featured image: Undated portra of Joseph Louis Gay-Lsac.

JOSEPH-LOUIS GAY-LSAC

Joseph Gay-Lsac, (born Dec.

GAY-LSAC'S GAS LAW EXAMPL

Joseph Louis Gay-Lsac, a French chemist, was born Dec.

JOSEPH-LOUIS GAY-LSAC

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. 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).

Gay-Lsac has also been featured on a French postage stamp (third image). 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-Lsac was born at Sat-Léonard--Noblat, the partment of Hte-Vienne.

JOSEPH LOUIS GAY-LSAC

Of the three dghters and two sons of Antoe Gay-Lsac, he was the elst male child. Gay-Lsac's father was an officer of the kg, and his grandfather was a medil doctor.

CATEGORY:JOSEPH LOUIS GAY-LSAC

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 found that the rate at which all gas expand wh creasg temperature is the same. Gay-Lsac and Jean-Baptiste Bt ascend a hot air balloon 1804 (illtratn c.

JOSEPH LOUIS GAY-LSAC

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.

SCIENTIST OF THE DAY - JOSEPH LOUIS GAY-LSAC

In 1807, a year after Gay-Lsac's return to France, Berthollet tablished a society of scientists lled the Societe d'Aucuiel.

Gay-Lsac was clud s membership. 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.

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.

GAY-LSAC’S LAW

In 1809 Gay-Lsac married Geneviève-Marie-Joseph Rojot. 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. The name Gay-Lsac gave the element, , and s English rivative, de, was the one that me to general e.

In 1824, Gay-Lsac played host to the young Liebig, who remaed at Gay-Lsac's laboratory for about six weeks vtigatg pssic acid.