The three laws including Joule law, Gay-Lussaclaw and charles law are simultaneously worked out by use of first , second law of thermodynamics and Boyle law.
利用热力学第一、二定律和玻意耳定律，同时导出了焦耳定律、盖。 吕萨克定律和查理定律。
2
But Charles did not publish his discovery of the law, but by the Gay-Lussac chance to know him after the results published in 1802.