Carbon dioxide gas is produced from the combustion of coal or hydrocarbons, by fermentation of liquids and the breathing of humans and animals, and by volcanoes.
Carbon dioxide is at a low concentration in the atmosphere and acts as a greenhouse gas. Carbon dioxide is used by plants to produce carbohydrates where the photosynthesis process releases oxygen to the atmosphere.
Carbon dioxide gas is colorless and heavier than air and has a slightly irritating odor.
Freezing point is -78.5 oC where it forms carbon dioxide snow or "dry ice".
Material properties of gases, fluids and solids - densities, specific heats, viscosities and more.
Properties of saturated liquid Carbon Dioxide - CO2 - density, specific heat, kinematic viscosity, thermal conductivity and Prandtl number.
Online calculator, figures and tables showing density and specific weight of carbon dioxide, CO2, at temperatures ranging from -50 to 775 °C (-50 to 1400 °F) at atmospheric and higher pressure - Imperial and SI Units.
Figures and table with changes in Prandtl number for carbon dioxide with changes in temperature and pressure.
Specific heat of Carbon Dioxide gas - CO2 - temperatures ranging 175 - 6000 K.
Online calculator, figures and table showing thermal conductivity of carbon dioxide, CO2, at temperatures ranging from -50 to 775 °C (-50 to 1400 °F) at atmospheric and higher pressure - Imperial and SI Units.
Chemical, physical and thermal properties of carbon dioxide. Phase diagram included.
CO2 acceptance and comfort level.
Carbon dioxide concentration in a room may indicate air quality and ventilation system efficiency.
Carbon Dioxide emission from persons vs. activity.
Enthalpy, Entropy and Internal Energy of Carbon Dioxide gas.
Calculator for CO2 emissions from trains, comparing with alternative forms of transportation (as plane, bus, conventional and electrical cars).
Calculator for CO2 emissions from planes, comparing with alternative forms of transportation (as train, bus, conventional and electrical cars).
Environmental emission of carbon dioxide CO2 when combustion fuels like coal, oil, natural gas, LPG and bio energy.
The atmospheric Carbon Dioxide concentration year 1959 - 2015.
Chemical, Physical and Thermal Properties of Helium - He.
A dimensionless number approximating the ratio of momentum diffusivity to thermal diffusivity.
Solubility of Ammonia, Argon, Carbon Dioxide, Carbon Monoxide, Chlorine, Ethane, Ethylene, Helium, Hydrogen, Hydrogen Sulfide, Methane, Nitrogen, Oxygen and Sulfur Dioxide in water.
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