Modul, Rum, & Soal Hum Gay-Lsac (Hum Perbandgan Volume) | Wardaya College

Contents:

• GAY-LSAC’S LAW
• JOSEPH-LOUIS GAY-LSAC
• HUM GAY LSAC: BUNYI, RUM, CONTOH SOAL, DAN PENERAPAN
• GAY-LSAC'S LAW DEFN
• WHAT IS GAY LSAC'S LAW OF GASEO VOLUM?
• MODUL, RUM, & SOAL HUM GAY-LSAC (HUM PERBANDGAN VOLUME)
• GAY-LSAC'S LAW—ITS CENTENARY
• GAY-LSAC’S LAW: INTRODUCTN, FORMULA AND DERIVATN
• WHAT IS GAY LSAC LAW?
• GAY-LSAC'S GAS LAW EXAMPL
• JOSEPH LOUIS GAY-LSAC

GAY-LSAC’S LAW

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. When a prsurized aerosol n (such as a odorant n or a spray-pat n) is heated, the rultg crease the prsure exerted by the gas on the ntaer (owg to Gay-Lsac’s law) n rult an explosn.

To learn more about Gay-Lsac’s law and other gas laws, such as Charl’ law, register wh BYJU’S and download the mobile applitn on your smartphone. 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.

JOSEPH-LOUIS GAY-LSAC

Gay-Lsac was the elst son of a provcial lawyer and royal official who lost his posn wh the French Revolutn of 1789.

HUM GAY LSAC: BUNYI, RUM, CONTOH SOAL, DAN PENERAPAN

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.

GAY-LSAC'S LAW DEFN

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.

WHAT IS GAY LSAC'S LAW OF GASEO VOLUM?

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.

MODUL, RUM, & SOAL HUM GAY-LSAC (HUM PERBANDGAN VOLUME)

Gay-Lsac’s appotment to the faculty of the Éle Polytechnique 1804 provid him wh laboratory facili the centre of Paris. 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.

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'S LAW—ITS CENTENARY

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.

GAY-LSAC’S LAW: INTRODUCTN, FORMULA AND DERIVATN

The French scientist Joseph-Louis Gay-Lsac (1778-1850; view portra at the Welle llectn) ma important ntributns ncerng the physil and chemil properti of gas. Bis the work scribed this selectn, he helped tablish that the volume of a gas at nstant prsure vari simply wh s temperature [Gay-Lsac 1802], a rult known today as Charl' law. The empiril evince prented by Gay-Lsac of gas bg simple rats by volume is remarkably nsistent wh John Dalton's ia of substanc bg atom to atom.

) The ngence between the ias of Dalton and the experiments of Gay-Lsac is obv to morn chemists, but was risted by both Dalton and Gay-Lsac.

I have add some footnot that were prent Gay-Lsac's origal paper and the Alembic Club translatn but which I neglected to clu my origal annotated versn of this paper. (Gay-Lsac's not are marked by an asterisk as well as a number brackets; me have only numbers brackets.

WHAT IS GAY LSAC LAW?

) Thanks to Jim Keiser, who drew my attentn to errors Gay-Lsac's figur for the muriate of ammonium, and whose note prompted me to rrect the earlier omissn of footnot and to fix broken lks. [2]Gay-Lsac here stat an aspect of Charl' law (named after his ntemporary Jacqu Charl), a subject on which he also nducted signifint rearch. [Gay-Lsac 1802] The extent to which a gas expands at nstant prsure is directly proportnal to s temperature, wh a proportnaly nstant the same for all gas.

[3]Gay-Lsac offers some sight to the reason behd a well-known fact the physil scienc: gas are simple while solids and pecially liquids are plited. [Partgton 1948] The llectn of quantative data on bg mass, Dalton's program of pilg specific heats and his program of measurg atomic weights (prev chapter), and Gay-Lsac's work on bg volum n be seen as efforts to make chemistry a quantative science. [7]Gay-Lsac summariz three opns on the qutn of bg proportns: Joseph-Louis Prot (1754-1826; see portra at the Welle llectn) believed that there were only two bg proportns possible for any pair of elements [e.

[10]By the time Gay-Lsac prented this paper, most of the available evince supported the hypothis of fe proportns, and much of the evince for variable proportns uld be explaed as due to mixtur rather than pounds. Intertgly, though, Gay-Lsac's attu this paragraph seems eher ntral or cled to disbelieve Berthollet's opponents.

GAY-LSAC'S GAS LAW EXAMPL

The fact that Gay-Lsac was an associate and protégé of Berthollet perhaps cled Gay-Lsac to have more nfince his work than perhaps the evince mered. What is important, however, is not so much the inty of the pounds volved the reactns (for ed, Gay-Lsac did not know the formulas of many of them, and did not report the quanti of product formed), but the fact that all the reactns the gas bed simple rats by volume.

In the first example given, that of water, Gay-Lsac means (although do not say so explicly) that water ntas 200 parts of hydrogen by volume for every 100 parts of oxygen. The reactn between the gas produc a solid salt, "muriate of ammonia" Gay-Lsac's day, now lled ammonium chlori:. The reactns Gay-Lsac reports on only occur between dissolved ammonia and rbon dxi, as he not the next paragraph.

JOSEPH LOUIS GAY-LSAC

[19]After prentg observatns on three different acids, Gay-Lsac formulat a hypothis that generaliz om those observatns. [22]An earlier footnote (9) suggted that Gay-Lsac was perhaps not entirely objective regardg the work of his associate Berthollet.

Note here, however, that Gay-Lsac is willg to note an stance where Berthollet's value and his own disagree. In ncrete terms, Gay-Lsac has enough objectivy and tegry to disagree openly wh Berthollet about the analysis of "muriate of ammonia, " even while his rpect for Berthollet seems to cloud his judgment ncerng fe proportns.