Carbon Dioxide

A heavy, colourless gas. Carbon dioxide is given out by animals during respiration and is used by plants during photosynthesis. It is also produced when fuels burn. Carbon dioxide is used in fire extinguishers. Carbon dioxide is a greenhouse gas that contributes to the potential for global warming. The world′s oceans contain the bulk of the world's CO2, 50 times as much as the atmosphere. CO2 absorption by oceans is related to water temperature, with colder water soaking up more CO2 than warm water. Deeper water also holds more CO2 than surface water. In winter, however, colder surface water becomes heavier, forcing the deeper water (the water containing more CO2) to the surface where the CO2 is released into the atmosphere.


Symbol
CO2

Also known as
Acidium Aereum, Acidium Mephiticum, Aerial Acid, Carbonic Acid, Fixed Air, Mephitic Air

Abundance
The fourth most abundant constituent of dry air, comprising 0.033% of the total.

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Density 1.977 kgm-3Clip
Boiling Point 195 KClip
Specific heat capacity 834 Jkg-1K-1Clip
Latent heat of evaporation 364000 Jkg-1Clip
Ratio of Specific Heats 1.304 Clip
Thermal conductivity 0.0145 Wm-1K-1Clip
Refractivity 0.000451 Clip
Viscosity 0.000014 Nsm-2Clip
Kinematic Viscosity 7.08143651997977E-06 m2s-1Clip
Critical Temperature 304 KClip
Critical Pressure 7380000 PaClip
Critical Volume 0.000094 m3mol-1Clip
de Broglie wavelength 0.000000000024 mClip
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See also: Air, Carbon Dioxide Emissions, Carbon Monoxide, Carbon Sequestration, Carbonic Acid, Equivalent Carbon Dioxide, Global Warming Potential, Greenhouse Gases.

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Subjects: Chemistry