31. The solid-liquid-gas triple point pressure is the minimal pressure at which liquid can exist in thermodynamic equilibrium. 32. :I think if you read Triple point # Triple point of water, it will answer your question. 33. The mouth of the Mezha is the triple point where Tver, Smolensk, and Pskov Oblasts join together. 34. :: Note also that temperature units these days are defined in terms of the triple point of water. 35. For historical reasons, the triple point temperature of water is fixed at 273.16 units of the measurement increment. 36. Gustav Heinrich Johann Apollon Tammann in G�ttingen produced data on several other triple points in the early 20th century. 37. Helium-4 is a special case that presents a triple point involving two different fluid phases ( lambda point ). 38. The gas liquid solid triple point of water corresponds to the minimum pressure at which liquid water can exist. 39. Normally, ceramics are opaque because pores are formed at triple points where grains intersect, causing scattering of incident light. 40. It runs westward to a triple point south of the Juan Fern�ndez Microplate where it intersects the East Pacific Rise.
