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The density of liquid helium-4 at its boiling point and a pressure of one atmosphere (101.3 kilopascals) is about 125 g/L (0.125 g/ml), or about one-eighth the density of liquid water. [ 1 ] Liquefaction
This is a list of the various reported boiling points for the elements, with recommended values to be used elsewhere on Wikipedia. ... 2 He helium; use: 4.222 K: − ...
Boiling liquid oxygen. ... This list is sorted by boiling point of gases in ascending order, ... Helium-4: 4 He −268.928 N/A 4 7440-59-7
Liquid helium-4 can be cooled to about 1 K (−272.15 °C; −457.87 °F) using evaporative cooling in a 1-K pot. Similar cooling of helium-3, which has a lower boiling point, can achieve about 0.2 kelvin in a helium-3 refrigerator. Equal mixtures of liquid 3 He and 4
Helium also has a very low boiling point (-268.9°C or -452°F), allowing it to remain a gas even in super-cold environments, an important feature because many rocket fuels are stored in that ...
2 He helium; use (T/K) 3 4 CRC.b (T/°C ... liquid, 325..725 °C: log (P/Pa ... The temperature at standard pressure should be equal to the normal boiling point, ...
Water boiling at 99.3 °C (210.8 °F) at 215 m (705 ft) elevation. The boiling point of a substance is the temperature at which the vapor pressure of a liquid equals the pressure surrounding the liquid [1] [2] and the liquid changes into a vapor.
The substance resembles crumbly snow and condenses and settles from the liquid helium. [39] It also contains variable proportions of N 2 molecules. [39] This substance is a high energy solid, with as much power as conventional explosives. When it is heated above 2.19 K (the lambda point of helium), the solid decomposes and explodes. [39]