Oxygen
A colourless and odourless element that is essential for most life forms on earth. The name is derived from the French oxygène, which means "acid generating".
- Symbol
- O
- Also known as
- Dephlogisticated Air, Vital air.
- Discovered
- 1774 Priestley publishes his work on oxygen.
- Abundance
- The most abundant element on earth, making up about 1/5 of the earth's atmosphere and 8/9ths of earth's oceans and almost half of the earth's crust.
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| Atomic number | 8 | Clip | |
| Mass number | 16 | Clip | |
| Atomic / Molecular Weight | 15.9994 | gmol-1 | Clip |
| Density | 1.33 | kgm-3 | Clip |
| Lattice constant | 683 | fm | Clip |
| Melting Point | 54.36 | K | Clip |
| Boiling Point | 90.198 | K | Clip |
| Specific heat capacity | 916 | Jkg-1K-1 | Clip |
| Latent heat of evaporation | 243000 | Jkg-1 | Clip |
| Ratio of Specific Heats | 1.395 | Clip | |
| Thermal conductivity | 0.0244 | Wm-1K-1 | Clip |
| Refractive index | 1.001711 | at 589.3nm 101.3kPa 0°C | Clip |
| Acoustic wave velocity (Irrotational waves) | 316 | ms-1 | Clip |
| Velocity of sound | 332.2ms-1 @ 30°C | ms-1 | Clip |
| Viscosity | 0.0000192 | Nsm-2 | Clip |
| Kinematic Viscosity | 1.44360902255639E-05 | m2s-1 | Clip |
| Critical Temperature | 154 | K | Clip |
| Critical Pressure | 5080000 | Pa | Clip |
| Critical Volume | 0.000078 | m3mol-1 | Clip |
| de Broglie wavelength | 0.000000000029 | m | Clip |
| Electromotive Series | -0.397 | V | Clip |
| Triple Point | 54.361 | K | Clip |
paste all data into clipboardSee also: Aerobic, Air, Anaerobic, Clark Electrode, Hydrogen Bonding, Lavoisier, Antoine Laurent, lox, Ozone, Periodic Table, Slush Oxygen, Water.
Subjects: Chemistry