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  2. Compressibility factor - Wikipedia

    en.wikipedia.org/wiki/Compressibility_factor

    In thermodynamics, the compressibility factor (Z), also known as the compression factor or the gas deviation factor, describes the deviation of a real gas from ideal gas behaviour. It is simply defined as the ratio of the molar volume of a gas to the molar volume of an ideal gas at the same temperature and pressure .

  3. Compressibility - Wikipedia

    en.wikipedia.org/wiki/Compressibility

    The compressibility factor is defined as = where p is the pressure of the gas, T is its temperature, and is its molar volume, all measured independently of one another. In the case of an ideal gas, the compressibility factor Z is equal to unity, and the familiar ideal gas law is recovered:

  4. Methane emissions - Wikipedia

    en.wikipedia.org/wiki/Methane_emissions

    Globally averaged atmospheric concentration and its annual growth rate. [17] In April 2022, NOAA reported an annual increase in global atmospheric methane of 17 parts per billion (ppb) in 2021—averaging 1,895.7 ppb in that year—the largest annual increase recorded since systematic measurements began in 1983; the increase during 2020 was 15.3 ppb, itself a record increase.

  5. Real gas - Wikipedia

    en.wikipedia.org/wiki/Real_gas

    compressibility effects; variable specific heat capacity; van der Waals forces; non-equilibrium thermodynamic effects; issues with molecular dissociation and elementary reactions with variable composition; For most applications, such a detailed analysis is unnecessary, and the ideal gas approximation can be used with reasonable accuracy.

  6. Atmospheric methane - Wikipedia

    en.wikipedia.org/wiki/Atmospheric_methane

    The concentration of atmospheric methane is increasing due to methane emissions, and is causing climate change. [3] [4] Methane is one of the most potent greenhouse gases. [5]: 82 Methane's radiative forcing (RF) of climate is direct, [6]: 2 and it is the second largest contributor to human-caused climate forcing in the historical period.

  7. Landfill gas utilization - Wikipedia

    en.wikipedia.org/wiki/Landfill_Gas_Utilization

    Methane has a global warming potential of 25 [2] times more effective of a greenhouse gas than carbon dioxide on a 100-year time horizon. It is estimated that more than 10% of all global anthropogenic methane emissions are from landfills. [21] Landfill gas projects help aid in the reduction of methane emissions.

  8. Life-cycle greenhouse gas emissions of energy sources

    en.wikipedia.org/wiki/Life-cycle_greenhouse_gas...

    Hydropower, biomass, geothermal and ocean power may generally be low-carbon, but poor design or other factors could result in higher emissions from individual power stations. For all technologies, advances in efficiency, and therefore reductions in CO 2 e since the time of publication, have not been included.

  9. Greenhouse gas emissions - Wikipedia

    en.wikipedia.org/wiki/Greenhouse_gas_emissions

    Methane has a high immediate impact with a 5-year global warming potential of up to 100. [5] Given this, the current 389 Mt of methane emissions [97]: 6 has about the same short-term global warming effect as CO 2 emissions, with a risk to trigger irreversible changes in climate and ecosystems. For methane, a reduction of about 30% below current ...

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