Joseph Louis Gay-Lsac, a French chemist, was born Dec. 6, 1778. 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...
Contents:
- JOSEPH LOUIS GAY-LSAC
- CAN YOU EXPLA GAY LSAC'S LAW TERMS OF THE KETIC MOLECULAR THEORY?
- GAY-LSAC'S LAW DEFN
- SCIENTIST OF THE DAY - JOSEPH LOUIS GAY-LSAC
- EXPERIMENT: GAY-LSAC’S LAW
- GAY-LSAC’S LAW EXAMPL
- JOSEPH-LOUIS GAY-LSAC
- GAY-LSAC’S LAW: GAS PRSURE AND TEMPERATURE RELATNSHIP
JOSEPH LOUIS GAY-LSAC
Gay-Lsac's Law stat that, a closed system of fixed volume, as the temperature of a gas creas, the prsure creas as well and this n be explaed g ketic molecular theory, or how the movement of dividual gas particl affects the behavr of a gas as a whole. Gay-Lsac's Law stat that, a closed system of fixed volume, as the temperature of a gas creas, the prsure creas as well. This n be explaed g ketic molecular theory, or how the movement of dividual gas particl affects the behavr of a gas as a whole. Temperature is a measure of the average ketic energy of a substance, or, how much motn atoms/particl have as a rult of heat energy. As the temperature of a substance ris, s molecul are movg faster or more energetilly. In a gas, when particl are a nfed space, faster movement of gas molecul will crease the number of llisns that molecul have wh each other or wh the ntaer. Thk of tryg to move through a crowd room at a party: if you walk through slowly, you n avoid bumpg to somebody, but if you try to n om one si of the room to the other, chanc are you will lli wh a few people along the way. When gas molecul lli wh their ntaer, we n measure the force per un area of the llisns. We refer to this measurement as the prsure of the gas. When llisns crease, the overall prsure creas. This means that as temperature ris, gas particl move more quickly, which turn them to have more llisns wh their ntaer. We register this crease llisns as prsure. Th, we observe an creased prsure wh an creased temperature, thereby nfirmg Gay-Lsac's Law. * gay lussac theory *
French chemist Joseph Louis Gay-Lsac proposed two fundamental laws of gas the early 19th century.
While one is generally attributed to a fellow untryman, the other is well known as Gay-Lsac’s law.
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. 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.
CAN YOU EXPLA GAY LSAC'S LAW TERMS OF THE KETIC MOLECULAR THEORY?
Gay-Lsac's law stat that at nstant volume, the prsure of an ial gas is directly proportnal to s absolute temperature." emprop="scriptn * gay lussac theory *
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. Gay-Lsac was the elst son of a provcial lawyer and royal official who lost his posn wh the French Revolutn of 1789.
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. Charl as “Charl’s law,” was the first of several regulari the behavur of matter that Gay-Lsac tablished. He later wrote, “If one were not animated wh the sire to disver laws, they would often pe the most enlightened attentn.” Of the laws Gay-Lsac disvered, he remas bt known for his law of the bg volum of gas (1808).
GAY-LSAC'S LAW DEFN
atom - Atom - Dalton, Bohr, Rutherford: English chemist and physicist John Dalton extend Prot’s work and nverted the atomic philosophy of the Greeks to a scientific theory between 1803 and 1808. His book A New System of Chemil Philosophy (Part I, 1808; Part II, 1810) was the first applitn of atomic theory to chemistry. It provid a physil picture of how elements be to form pounds and a phenomenologil reason for believg that atoms exist. His work, together wh that of Joseph-Louis Gay-Lsac of France and Ameo Avogadro of Italy, provid the experimental foundatn of atomic chemistry. On the basis of the law of fe proportns, * gay lussac theory *
Gay-Lsac’s approach to the study of matter was nsistently volumetric rather than gravimetric, ntrast to that of his English ntemporary John Dalton.
SCIENTIST OF THE DAY - JOSEPH LOUIS 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.
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. Gay-Lsac’s appotment to the faculty of the Éle Polytechnique 1804 provid him wh laboratory facili the centre of Paris.
EXPERIMENT: GAY-LSAC’S LAW
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’S LAW EXAMPL
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].
JOSEPH-LOUIS GAY-LSAC
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. Still, Gay-Lsac did not pe cricism om lleagu for turng away om the path of “pure” science and toward the path of fancial ga. 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. 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.
GAY-LSAC’S LAW: GAS PRSURE AND TEMPERATURE RELATNSHIP
In the sprg of 1850, realizg that he was dyg, he asked his son to burn a treatise he had begun lled “Philosophie chimique.” 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’s law is a gas law which stat that the prsure exerted by a gas (of a given mass and kept at a nstant volume) vari directly wh the absolute temperature of the gas.
Gay-Lsac’s law impli that the rat of the ial prsure and temperature is equal to the rat of the fal prsure and temperature for a gas of a fixed mass kept at a nstant volume.