Difference between revisions of "Nitrogen"
m (adding some text) |
m (→Storage: signing opinion) |
||
| Line 7: | Line 7: | ||
To maintain Nitrogen in a manageable, and useful [[triple point|liquid phase]] will require additional [[energy]]. The boiling point of nitrogen is -195.79 °C, so a temperature below this must be maintained through [[refrigeration]]. | To maintain Nitrogen in a manageable, and useful [[triple point|liquid phase]] will require additional [[energy]]. The boiling point of nitrogen is -195.79 °C, so a temperature below this must be maintained through [[refrigeration]]. | ||
| − | The surface temperature of Mars will aid this effort as the average global temperature is approximately -63°C, so storage location of liquid nitrogen would not be inside [[settlement|habitats]] (where the average temperature should be as close to 23 °C as possible), but outside, on the cooler surface. '''''{{PersPosSection}}''''' | + | The surface temperature of Mars will aid this effort as the average global temperature is approximately -63°C, so storage location of liquid nitrogen would not be inside [[settlement|habitats]] (where the average temperature should be as close to 23 °C as possible), but outside, on the cooler surface. '''''{{PersPosSection}} [[User:Ioneill|Ioneill]]''''' |
==Uses== | ==Uses== | ||
Revision as of 14:31, 24 November 2007
| N | 7 |
| Nitrogen | |
Abundance: {{{abundance}}}
Nitrogen (chemical symbol: N7) is the most abundant atmospheric element in the Earth's atmosphere, making up 78% of the total atmospheric gas. Mars, however, has very little nitrogen in it's atmosphere. At only 3% of the total atmospheric gas, this lack of nitrogen will cause problems for colonists hoping to extract nitrogen in any great quantity from the atmosphere.
The "nitrogen cycle" is an essential terrestrial process that produces organic compounds intrinsic to life on Earth. "Fixing" by lightning strikes or bacterial processes combine atmospheric nitrogen with other elements (such as hydrogen, producing ammonia) producing organic compounds useful to plants (sustaining growth and used in photosynthesis), thereby supporting ecosystems. Nitrogen can be found in amino acids, proteins and DNA, making it an essential component of life as we know it.
Storage
To maintain Nitrogen in a manageable, and useful liquid phase will require additional energy. The boiling point of nitrogen is -195.79 °C, so a temperature below this must be maintained through refrigeration.
The surface temperature of Mars will aid this effort as the average global temperature is approximately -63°C, so storage location of liquid nitrogen would not be inside habitats (where the average temperature should be as close to 23 °C as possible), but outside, on the cooler surface. This section reflects the personal position of Ioneill
Uses
- May be used to prepare dead bodies prior to disposal. Freezing bodies and then powdering the remains (through vibration) may be a viable means to reuse valuable biomass (in greenhouses etc.).
