在化学科学中,温度是一个重要的物理量,物质的性质和各种化学变化,无不与温度有关。因此,对于温度的单位必须有一个统一的标准。这个标准就是国际单位制所规定的基本单位之一——热力学温度单位。1967年第十三届国际计量大会通过热力学温度单位以开尔文(简称“开”,代号 K)代替“开氏度”(代号°K),同时决定用单位开尔文及其代号 K 表示 In chemical science, temperature is an important physical quantity, the nature of matter and various chemical changes, all with the temperature. Therefore, there must be a uniform standard for the unit of temperature. This standard is one of the basic units of the International System of Units - the thermodynamic temperature unit. In 1967, the thirteenth International Conference of Metrology adopted Kelvin (abbreviated as “open”, code K) instead of “open degree” (code ° K) through thermodynamic temperature units, and decided to use the unit Kelvin and its code K