Joseph Louis Gay-Lussac: Difference between revisions
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Revision as of 03:06, 4 December 2015
Samar Abdelmageed
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Short Description of Topic
Joseph Louis Gay-Lussac (6 December 1778 – 9 May 1850) was a french chemist and physicist. He was best known for his work on the behavior of gases, namely Gay-Lussac's Law.
Biography
Gay-Lussac was born at Saint-Léonard-de-Noblat to Anthony Gay-Lussac, a royal attorney who was imprisoned from 1793-1794 during the French Revolution.
He attended the École Polytechnique, followed by the prestigious École des Ponts et Chaussées. He dropped out during this time to become research assistant to C. L. Berthollet. Later, he taught physics at the Sorbonne, and then the chair of chemistry at the Jardin des Plantes. In 1821, he became part of the Royal Swedish Academy of Sciences. He was also elected representative of the Haute-Vienne in the chamber of deputies and chamber of peers.
In 1809, Gay-Lussac married Geneviève-Marie-Joseph Rojot. They had five children together; the eldest, Jules Gay-Lussac, was assistant to prominent chemist Justus Liebig.
He died in Paris in 1850 and is one of only 72 people to have his name inscribed on the Eiffel Tower.
Scientific Contribution
Gay-Lussac formulated two core gas laws, identified two elements, pioneered volumetric analysis, and made important discoveries on the composition of the atmosphere and water.
Gas Laws
1. The Law of Combining Volumes states that when gases react to form new gas products, the ratio between the volumes of the reactants and the products are simple whole numbers. This law later lead to Avogadro's Law.
Example: 3 Volumes Hydrogen Gas + 1 Volume Nitrogen Gas = 2 Volumes Ammonia Gas
2. The Pressure-Temperature Law states that pressure and temperature are directly related for a gas at a fixed volume and mass.
Example: The law can be used to compare the same substance in different conditions:
These two gas laws, along with Charles' Law, and Boyle's law make up the Combined Gas Law. The Combined Gas Law and Avogadro's Law form the Ideal Gas Law.
Elements
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Techniques
Experiments
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References
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