An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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Gay-Lussac's law
  قانون ِ گی-لوساک  
qânun-e Gay-Lussac (#)
Fr.: loi de Gay-Lussac  

  1. Law of combining volumes. The volumes of gases used and produced in a chemical reaction, are in the ratio of small whole numbers when measured at constant temperature and pressure.

  2. For a gas held at constant volume, there is a direct correlation between temperature and pressure: P1/T1 = P2/T2. Gay-Lussac’s law, → Boyle-Mariotte law, and → Charles’ law were later unified into the → ideal gas law.

See also: Named after Joseph Louis Gay-Lussac (1778-1850), a French chemist and physicist; → law.