GAY LUSSAC
( 1778 - 1850 )
Joseph Louis Gay Lussac was a French chemist and physicist. He stated Gas laws.
Joseph Louis Gay Lussac was a French chemist and physicist. He stated Gas laws.
Gay Lussac was a physics lecturer at Sorbonne and he became a professor at the Ecole Polytechnique. In 1802 he reformulated Charles Law of thermal expansion of gases.
Charle’s law states that the volume of a given mass of gas at constant pressure is directly proportional to the absolute thermodynamic temperature; equivalently all gases have the same coefficient of expansion at constant pressure.
Gay Lussac’s Law states that when gases react they do so in volume which bear a somple ratio to one another and to the volume of the resulting substances in the gaseous state, all volumes being measured at the same temperature and pressure. That is the gases combine chemically in simple proportions by volume.
Gay Lussac also obtained sodium and potassium in 1808 and 1815. He was the first to obtain an acid without oxygen or anhydrous prussic acid. He developed new methods of volumetric analysis.
Jean Baptiste Biot was Gay Lussac’s friend. Both were physicists. They once made a daring balloon flight which took them to more than 7000 metres. At an elevation of about 7016 metres the balloon stopped going high and Gay Lussac threw all kinds of things off from the ballon. It is said that the people who were peasants who saw them believed that the objects were throuwn from heaven.
Gay Lussac proposed the law of combining volumes in 1809 which states that gases form compoiunds with each other in simple, definite proportions which can be expressed by the formula of the compounds.
Eg: Formula for water – H2O shows that it is formed of 2 parts of hydrogen and one of Oxygen.
Gay Lussac also improved processes for making sulphurc and oxalic acid in industry.
Charle’s law states that the volume of a given mass of gas at constant pressure is directly proportional to the absolute thermodynamic temperature; equivalently all gases have the same coefficient of expansion at constant pressure.
Gay Lussac’s Law states that when gases react they do so in volume which bear a somple ratio to one another and to the volume of the resulting substances in the gaseous state, all volumes being measured at the same temperature and pressure. That is the gases combine chemically in simple proportions by volume.
Gay Lussac also obtained sodium and potassium in 1808 and 1815. He was the first to obtain an acid without oxygen or anhydrous prussic acid. He developed new methods of volumetric analysis.
Jean Baptiste Biot was Gay Lussac’s friend. Both were physicists. They once made a daring balloon flight which took them to more than 7000 metres. At an elevation of about 7016 metres the balloon stopped going high and Gay Lussac threw all kinds of things off from the ballon. It is said that the people who were peasants who saw them believed that the objects were throuwn from heaven.
Gay Lussac proposed the law of combining volumes in 1809 which states that gases form compoiunds with each other in simple, definite proportions which can be expressed by the formula of the compounds.
Eg: Formula for water – H2O shows that it is formed of 2 parts of hydrogen and one of Oxygen.
Gay Lussac also improved processes for making sulphurc and oxalic acid in industry.
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