Sublimora: Triple Point Sublimation
Thermodynamics & Statistical Physics arc, page 54 of 193. Back to The Pixelated Physics Universe
Who they are
Sublimora has one line, and says it often: “Below 611 pa, skip the liquid phase.”
Sublimora is a character of the Thermodynamics & Statistical Physics arc: drawn in pixels, ruled by one piece of real physics, and never allowed to break it.
The physics
Below the triple point pressure (611.657 Pa), ice sublimates directly; freeze-dried coffee uses this.
$$ \begin{gathered} p < p_{\text{tp}} = 611.657\ \text{Pa} \;\Rightarrow\; \text{ice} \to \text{vapour} \end{gathered} $$
| Symbol | Meaning | SI unit |
|---|---|---|
| $p$ | pressure | Pa |
| $p_{\text{tp}}$ | triple-point pressure of water | Pa |
Sources
Crossovers
Sublimora meets Vaporelle (Latent Heat of Vaporization). Vaporelle crosses from liquid to gas. Below the triple-point pressure, Sublimora skips the liquid entirely, and the heat of sublimation equals the heats of fusion and vaporisation combined.
Sublimora meets Rimehold (Supercooled Water). Sublimora skips the liquid phase below 611.657 Pa. Rimehold holds liquid water far below 0 °C without freezing. Phase diagrams say what is stable, and kinetics decides what actually happens.
Wear the lore
Concept keywords: Triple Point Sublimation, Sublimora, Thermodynamics & Statistical Physics, physics lore, Pixelated Physics