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Gay-Lussac

The French physicist and chemist Joseph Louis Gay-Lussac (1778-1850) defined the Gay-Lussac law of uniform thermal expansion of gases, named after him. According to this law, at constant pressure all gases expand by 1/273 of their volume when heated by one degree Celsius. He also developed a system that represents the alcohol content in degrees (°). The amount of pure alcohol in 100 litres of wine is given, measured at 15 °C. This system is still used in the Anglo-American world today, mostly in the abbreviation G.L. The value in degrees corresponds numerically to the volume percent. For a list of the complex of topics, see also Units of Measurement.

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Andreas Essl
Autor, Modena

The world's largest Lexicon of wine terms.

26,410 Keywords · 47,049 Synonyms · 5,323 Translations · 31,744 Pronunciations · 205,891 Cross-references
made with by our author Norbert F. J. Tischelmayer. About the Lexicon

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