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  2. Carbon dioxide (data page) - Wikipedia

    en.wikipedia.org/wiki/Carbon_dioxide_(data_page)

    Structure and properties Index of refraction, n D: 1.000449 at 589.3 nm and 0 °C [1]: Dielectric constant, ε r: 1.60 ε 0 at 0 °C, 50 atm : Average energy per C=O bond : 804.4 kJ/mol at 298 K (25 °C) [2]

  3. Liquid carbon dioxide - Wikipedia

    en.wikipedia.org/wiki/Liquid_carbon_dioxide

    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]

  4. Carbon dioxide - Wikipedia

    en.wikipedia.org/wiki/Carbon_dioxide

    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]

  5. Molar volume - Wikipedia

    en.wikipedia.org/wiki/Molar_volume

    The interest stems from that accurate measurements of the unit cell volume, atomic weight and mass density of a pure crystalline solid provide a direct determination of the Avogadro constant. [3] The CODATA recommended value for the molar volume of silicon is 1.205 883 199 (60) × 10 −5 m 3 ⋅mol −1, with a relative standard uncertainty of ...

  6. Fuel fraction - Wikipedia

    en.wikipedia.org/wiki/Fuel_fraction

    With a fuel fraction of nearly 85%, the GlobalFlyer could carry 5 times its weight in fuel. In aerospace engineering, an aircraft's fuel fraction, fuel weight fraction, [1] or a spacecraft's propellant fraction, is the weight of the fuel or propellant divided by the gross take-off weight of the craft (including propellant): [2]

  7. New way to turn CO2 back into petrol as ‘carbon-neutral fuel’

    www.aol.com/news/new-way-to-turn-co-2-back-into...

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  8. Payload fraction - Wikipedia

    en.wikipedia.org/wiki/Payload_fraction

    The payload fraction is the quotient of the payload mass and the total vehicle mass at the start of its journey. It is a function of specific impulse, propellant mass fraction and the structural coefficient. In aircraft, loading less than full fuel for shorter trips is standard practice to reduce weight and fuel consumption.

  9. Mortgage and refinance rates for Dec. 20, 2024: Average ... - AOL

    www.aol.com/finance/mortgage-and-refinance-rates...

    Daily average mortgage rates on popular terms are rising as of Friday, December 20, 2024, with sharp moves higher for 30-year terms edging closer to 6.90% — an average 20 basis points higher ...