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  2. 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: ... (where kmol is kilomoles = 1000 moles) References This page was last ...

  3. Methane (data page) - Wikipedia

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

    Methane vapor pressure vs. temperature. Uses formula log 10 ⁡ P mm Hg = 6.61184 − 389.93 266.00 + T ∘ C {\displaystyle \log _{10}P_{\text{mm Hg}}=6.61184-{\frac {389.93}{266.00+T_{^{\circ }{\text{C}}}}}} given in Lange's Handbook of Chemistry , 10th ed. Note that formula loses accuracy near T crit = −82.6 °C

  4. Molar concentration - Wikipedia

    en.wikipedia.org/wiki/Molar_concentration

    Molar concentration or molarity is most commonly expressed in units of moles of solute per litre of solution. [1] For use in broader applications, it is defined as amount of substance of solute per unit volume of solution, or per unit volume available to the species, represented by lowercase c {\displaystyle c} : [ 2 ]

  5. Mole map (chemistry) - Wikipedia

    en.wikipedia.org/wiki/Mole_map_(chemistry)

    In chemistry, a mole map is a graphical representation of an algorithm that compares molar mass, number of particles per mole, and factors from balanced equations or other formulae. [1] They are often used in undergraduate -level chemistry courses as a tool to teach the basics of stoichiometry and unit conversion .

  6. Equivalent concentration - Wikipedia

    en.wikipedia.org/wiki/Equivalent_concentration

    Normality is defined as the number of gram or mole equivalents of solute present in one liter of solution.The SI unit of normality is equivalents per liter (Eq/L). = where N is normality, m sol is the mass of solute in grams, EW sol is the equivalent weight of solute, and V soln is the volume of the entire solution in liters.

  7. Texas leads 23-state coalition to block EPA methane tax - AOL

    www.aol.com/news/texas-leads-23-state-coalition...

    Texas produces the greatest volume of petroleum and marketed natural gas and would likely be disproportionately impacted by the tax. In 2022, Congress passed the Inflation Reduction Act, which ...

  8. Useful conversions and formulas for air dispersion modeling

    en.wikipedia.org/wiki/Useful_conversions_and...

    Atmospheric pollutant concentrations expressed as mass per unit volume of atmospheric air (e.g., mg/m 3, μg/m 3, etc.) at sea level will decrease with increasing altitude because the atmospheric pressure decreases with increasing altitude.

  9. Oxidative coupling of methane - Wikipedia

    en.wikipedia.org/wiki/Oxidative_coupling_of_methane

    The oxidative coupling of methane (OCM) is a potential chemical reaction studied in the 1980s for the direct conversion of natural gas, primarily consisting of methane, into value-added chemicals. Although the reaction would have strong economics if practicable, no effective catalysts are known, and thermodynamic arguments suggest none can exist.