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  2. Methane - Wikipedia

    en.wikipedia.org/wiki/Methane

    422.8 g/L (liquid, −162 °C) [3] ... the specific energy of methane is lower but this disadvantage is offset by methane's greater density and temperature range, ...

  3. Methane (data page) - Wikipedia

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

    Table data obtained from CRC Handbook of Chemistry and Physics 44th ed. Annotation "(s)" indicates equilibrium temperature of vapor over solid. Otherwise temperature is equilibrium of vapor over liquid.

  4. Lifting gas - Wikipedia

    en.wikipedia.org/wiki/Lifting_gas

    Methane (density 0.716 g/L at STP, average molecular mass 16.04 g/mol), the main component of natural gas, is sometimes used as a lift gas when hydrogen and helium are not available. [citation needed] It has the advantage of not leaking through balloon walls as rapidly as the smaller molecules of hydrogen and helium. Many lighter-than-air ...

  5. Densities of the elements (data page) - Wikipedia

    en.wikipedia.org/wiki/Densities_of_the_elements...

    2 He helium-4; Hoffer et al. 0.19085 g/cm 3 (from 20.9730 cm 3 /mole; hcp crystal melting to He-II superfluid at 0 K, 25.00 atm) : 0.19083 g/cm 3 (from 20.9749 cm 3 /mole; at local min. density, hcp melting to He-II: 0.884 K, 25.00 atm)

  6. Natural gas - Wikipedia

    en.wikipedia.org/wiki/Natural_gas

    Natural gas is thus a potent greenhouse gas due to the strong radiative forcing of methane in the short term, and the continuing effects of carbon dioxide in the longer term. [115] Targeted efforts to reduce warming quickly by reducing anthropogenic methane emissions is a climate change mitigation strategy supported by the Global Methane ...

  7. Energy density Extended Reference Table - Wikipedia

    en.wikipedia.org/wiki/Energy_density_Extended...

    5.56 × 45 mm NATO bullet muzzle energy density [clarification needed] 0.4: 3.2: battery, Nickel–metal hydride (NiMH), low power design as used in consumer ...

  8. Van der Waals constants (data page) - Wikipedia

    en.wikipedia.org/wiki/Van_der_Waals_constants...

    Methane: 2.253 0.04278 Methanol: 9.649 0.06702 Methylamine [2] 7.106 0.0588 Neon: 0.2135 0.01709 Neopentane [2] 17.17 0.1411 Nitric oxide: 1.358 0.02789 Nitrogen: 1.370 0.0387 Nitrogen dioxide: 5.354 0.04424 Nitrogen trifluoride [2] 3.58 0.0545 Nitrous oxide: 3.832 0.04415 Octane [2] 37.88 0.2374 1-Octanol [2] 44.71 0.2442 Oxygen: 1.382 0.03186 ...

  9. Gas composition - Wikipedia

    en.wikipedia.org/wiki/Gas_composition

    Methane: CH 4: 0.0002 Helium: He 0.000524 Krypton: Kr 0.000114 Hydrogen: H 2: 0.00005 Xenon: Xe 0.0000087 ... a gas density at standard conditions and a molar mass.