Definitions for Triple Point
triple point

WiktionaryRate this definition:0.0 / 0 votes

1. triple pointnoun

   The unique temperature and pressure at which the solid, liquid and gas phases of a substance are all in equilibrium.

WikipediaRate this definition:0.0 / 0 votes

1. Triple point

   In thermodynamics, the triple point of a substance is the temperature and pressure at which the three phases (gas, liquid, and solid) of that substance coexist in thermodynamic equilibrium. It is that temperature and pressure at which the sublimation curve, fusion curve and the vaporisation curve meet. For example, the triple point of mercury occurs at a temperature of −38.8 °C (−37.8 °F) and a pressure of 0.165 mPa. In addition to the triple point for solid, liquid, and gas phases, a triple point may involve more than one solid phase, for substances with multiple polymorphs. Helium-4 is a special case that presents a triple point involving two different fluid phases (lambda point).The triple point of water was used to define the kelvin, the base unit of thermodynamic temperature in the International System of Units (SI). The value of the triple point of water was fixed by definition, rather than measured, but that changed with the 2019 redefinition of SI base units. The triple points of several substances are used to define points in the ITS-90 international temperature scale, ranging from the triple point of hydrogen (13.8033 K) to the triple point of water (273.16 K, 0.01 °C, or 32.018 °F). The term "triple point" was coined in 1873 by James Thomson, brother of Lord Kelvin.

WikidataRate this definition:0.0 / 0 votes

1. Triple point

   In thermodynamics, the triple point of a substance is the temperature and pressure at which the three phases of that substance coexist in thermodynamic equilibrium. For example, the triple point of mercury occurs at a temperature of −38.8344 °C and a pressure of 0.2 mPa. In addition to the triple point between solid, liquid, and gas, there can be triple points involving more than one solid phase, for substances with multiple polymorphs. Helium-4 is a special case that presents a triple point involving two different fluid phases. In general, for a system with p possible phases, there are triple points. The triple point of water is used to define the kelvin, the SI base unit of thermodynamic temperature. The number given for the temperature of the triple point of water is an exact definition rather than a measured quantity. The triple points of several substances are used to define points in the ITS-90 international temperature scale, ranging from the triple point of hydrogen to the triple point of water.

How to pronounce Triple Point?

1. Alex

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   Daniel

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   Libby

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How to say Triple Point in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of Triple Point in Chaldean Numerology is: 3

2. Pythagorean Numerology

   The numerical value of Triple Point in Pythagorean Numerology is: 1

References

1. ^ Wiktionary
   https://en.wiktionary.org/wiki/Triple_Point
2. ^ Wikipedia
   https://en.wikipedia.org/wiki/Triple_Point
3. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=Triple Point