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Triple point. A typical phase diagram. The solid green line applies to most substances; the dashed green line gives the anomalous behavior of water. 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. [1]
In chemistry and physics, the triple point is the temperature and pressure at which solid, liquid, and vapor phases of a particular substance coexist in equilibrium. It is a specific case of thermodynamic phase equilibrium. The term "triple point" was coined by James Thomson in 1873.
11 wrz 2022 · In chemistry and physics, the triple point of a pure substance is the combination of temperature and pressure where three phases exist in thermodynamic equilibrium. Usually, the triple point refers to the point where a substance’s solid, liquid, and vapor phase coexist in equilibrium.
27 maj 2024 · The triple point of a substance is the specific temperature and pressure at which its solid, liquid, and gas phases coexist in equilibrium. This point is unique to each substance and is a critical aspect of its phase diagram, which is a graphical representation of the conditions under which distinct phases occur and coexist.
12 lip 2023 · To be able to identify the triple point, the critical point, and four regions: solid, liquid, gas, and a supercritical fluid. The state exhibited by a given sample of matter depends on the identity, temperature, and pressure of the sample.
The triple point is a key feature on a phase diagram as it marks the unique conditions where solid, liquid, and gas phases coexist. By identifying this point on the diagram, one can easily understand the relationships and transitions between different phases under varying temperatures and pressures.
Definition. The triple point of a substance is the specific temperature and pressure at which three phases (gas, liquid, and solid) coexist in thermodynamic equilibrium. This unique point is crucial in understanding phase equilibria and phase diagrams, as it provides a reference for the behavior of materials under varying conditions.
