ﻗﺎﻧﻮﻥ ﺟﺎﻱ-ﻟﻮﺳﺎﻙ
* ﻋﺪﻝ
* ﺭﺍﻗﺐ ﻫﺬﻩ ﺍﻟﺼﻔﺤﺔ
*ﻗﺎﻧﻮﻥ ﺟﺎﻱ-ﻟﻮﺳﺎﻙ* ﻓﻲ ﺍﻟﻜﻴﻤﻴﺎﺀ
ﻭ ﺍﻟﻔﻴﺰﻳﺎﺀ
(ﺑﺎﻹﻧﺠﻠﻴﺰﻳﺔ : Gay-Lussac's law) ﻳﻨﺺ ﻫﺬﺍ ﺍﻟﻘﺎﻧﻮﻥ ﻋﻠﻰ ﺃﻥ ﺿﻐﻂﻏﺎﺯ ﻣﺜﺎﻟﻲ
ﻳﺘﻐﻴﺮ ﺗﻐﻴﺮﺍ ﻃﺮﺩﻳﺎ ﻣﻊ ﺩﺭﺟﺔ ﺍﻟﺤﺮﺍﺭﺓ
ﻋﻨﺪ ﺛﺒﺎﺕ ﺍﻟﺤﺠﻢ . ﺗﻘﺎﺱ ﺩﺭﺟﺔ ﺍﻟﺤﺮﺍﺭﺓ ﻫﻨﺎ ﺑﺎﻟﻜﻠﻔﻦ
ﻛﻤﺎ ﻳﻔﺘﺮﺽ ﺛﺒﺎﺕ ﻛﻤﻴﺔ ﺍﻟﻐﺎﺯ . ﻣﻌﻨﻰ ﺫﻟﻚ ﺃﻥ ﺿﻐﻂ ﺍﻟﻐﺎﺯ ﻳﺰﺩﺍﺩ ﺑﺎﻟﺘﺴﺨﻴﻦ ﻭ ﻳﻘﻞ ﻋﻨﺪ ﻓﻘﺪﻩ ﺣﺮﺍﺭﺓ
. ﻭﻗﺪ ﺍﻛﺘﺸﻒ ﻫﺬﺍ ﺍﻻﻋﺘﻤﺎﺩ ﺑﻴﻦ ﺿﻐﻂ ﺍﻟﻐﺎﺯ ﻭﺩﺭﺟﺔ ﺍﻟﺤﺮﺍﺭﺓ ﺟﺎﻙ ﺷﺎﺭﻟﺰ ﻋﺎﻡ 1787 ﻭ ﺍﻟﻌﺎﻟﻢ ﻭﺍﻟﻔﻴﺰﻳﺎﺋﻲ ﺍﻟﻔﺮﻧﺴﻲ ﺟﻮﺯﻳﻒ ﺟﺎﻱ-ﻟﻮﺳﺎﻙ ﻓﻲ ﻋﺎﻡ 1802 :