Definition of triple point in English:

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triple point

noun

Chemistry
The temperature and pressure at which the solid, liquid, and vapour phases of a pure substance can coexist in equilibrium.
Example sentences
  • The kelvin is described as 1 / 273.16 of the thermodynamic temperature of the triple point of water.
  • These two regions could be separated by a uniform liquid phase, a triple point, or an extended region in which three phases are in coexistence, one solid and two liquid.
  • The triple point of water occurs at an external pressure of .18 in and a temperature of 32.02°F.
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