V2EX triple point

Triple Point

释义 Definition

三相点:指某种物质在特定的温度压力下,固态、液态、气态三种相能够同时处于平衡共存的状态点。(在相图上是一个重要的特征点;某些物质还可能有不止一个三相点。)

例句 Examples

The triple point of water is used to calibrate thermometers.
水的三相点常用于校准温度计。

On the phase diagram, the substance reaches a triple point where solid, liquid, and vapor coexist in equilibrium under a precise temperature and pressure.
在相图上,该物质在某一精确温度与压力下达到三相点,使固、液、气三相在平衡中共存。

发音 Pronunciation (IPA)

/trpl pnt/

词源 Etymology

triple 源自拉丁语 triplex(“三重的”),经由法语进入英语;point 源自拉丁语 punctum(“点、刺点”)。组合成 triple point,字面义为“三重的点”,在物理化学与热力学中专指“三相共存的状态点”。

相关词 Related Words

文学与经典著作中的用例 Literary Works

  • The Feynman Lectures on Physics(《费曼物理学讲义》)
  • Physical Chemistry by Atkins & de Paula(《阿特金斯物理化学》)
  • Thermodynamics by Enrico Fermi(《热力学》费米)
  • CRC Handbook of Chemistry and Physics(《CRC 化学与物理手册》)
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