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Jets of liquid carbon dioxide. Liquid carbon dioxide is the liquid state of carbon dioxide (CO 2), which cannot occur under atmospheric pressure.It can only exist at a pressure above 5.1 atm (5.2 bar; 75 psi), under 31.1 °C (88.0 °F) (temperature of critical point) and above −56.6 °C (−69.9 °F) (temperature of triple point). [1]
Also agrees with Celsius values from Section 4: Properties of the Elements and Inorganic Compounds, Melting, Boiling, Triple, and Critical Point Temperatures of the Elements Estimated accuracy for T c and P c is indicated by the number of digits.
1 Boiling points, Master List format. 2 Periodic Table format. 3 Notes. 4 References. Toggle References subsection. 4.1 Zhang et al. ... Melting points of the ...
183.1 J/(mol K) at 38 °C, 8653 kPa. Heat capacity ratio [11] γ = c p /c v: 1.37 at –75 °C 1.310 at 0 °C 1.304 at 15 °C 1.281 at 100 °C 1.235 at 400 °C 1.195 at 1000 °C 1.171 at 2000 °C van der Waals' constants [13] a = 363.96 L 2 kPa/mol 2 b = 0.04267 liter per mole Equilibrium with carbon monoxide [14] CO + 1 / 2 O 2 → CO 2
The temperature at standard pressure should be equal to the normal boiling point, but due to the considerable spread does not necessarily have to match values reported elsewhere. log refers to log base 10 (T/K) refers to temperature in Kelvin (K) (P/Pa) refers to pressure in Pascal (Pa)
The symmetry of a carbon dioxide molecule is linear and centrosymmetric at its equilibrium geometry. The length of the carbon–oxygen bond in carbon dioxide is 116.3 pm, noticeably shorter than the roughly 140 pm length of a typical single C–O bond, and shorter than most other C–O multiply bonded functional groups such as carbonyls. [19]
Solid carbon dioxide sublimes rapidly along the solid-gas boundary (sublimation point) below the triple point (e.g., at the temperature of −78.5 °C, at atmospheric pressure), whereas its melting into liquid CO 2 can occur along the solid-liquid boundary (melting point) at pressures and temperatures above the triple point (i.e., 5.1 atm, − ...
5 B boron; use: 508 CRC: 480 LNG: 480 WEL: 507 Zhang et al. ... Values refer to the enthalpy change in the conversion of liquid to gas at the boiling point (normal ...