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  2. Vapor pressures of the elements (data page) - Wikipedia

    en.wikipedia.org/wiki/Vapor_pressures_of_the...

    Values are given in terms of temperature necessary to reach the specified pressure. Valid results within the quoted ranges from most equations are included in the table for comparison. A conversion factor is included into the original first coefficients of the equations to provide the pressure in pascals (CR2: 5.006, SMI: -0.875).

  3. Home canning - Wikipedia

    en.wikipedia.org/wiki/Home_canning

    Pressure canning is the only safe home canning method for meats and low-acid foods. This method uses a pressure canner — similar to, but heavier than, a pressure cooker. A small amount of water is placed in the pressure canner and it is turned to steam, which without pressure would be 212 °F (100 °C), but under pressure is raised to 240 °F ...

  4. 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. The change of atmospheric pressure with altitude can be obtained from this equation: [2]

  5. Oxygen equivalent - Wikipedia

    en.wikipedia.org/wiki/Oxygen_Equivalent

    Oxygen equivalent compares the relative amount of oxygen available for respiration at a variable pressure to that available at SATP.As external respiration depends on the exchange of gases due to partial pressures across a semipermeable membrane and normally occurs at SATP, an oxygen equivalent may aid in recognizing and managing variable oxygen availability during procedures such as ...

  6. Oxygen compatibility - Wikipedia

    en.wikipedia.org/wiki/Oxygen_compatibility

    In an oxygen system the presence of oxygen is implied, and in a sufficiently high partial pressure of oxygen, most materials can be considered fuel. Potential ignition sources are present in almost all oxygen systems, but fire hazards can be mitigated by controlling the risk factors associated with the oxygen, fuel, or heat, which can limit the ...

  7. Bitcoin's 2025 Outlook Suddenly Looks Uncertain: Here's Why - AOL

    www.aol.com/bitcoins-2025-outlook-suddenly-looks...

    As 2025 approaches, Bitcoin (CRYPTO: BTC) finds itself navigating a shifting macroeconomic landscape, with fading tailwinds raising concerns about sustained momentum, according to a report. What ...

  8. Modified atmosphere - Wikipedia

    en.wikipedia.org/wiki/Modified_atmosphere

    Oxygen also helps maintain high respiration rates of fresh produce, which contribute to shortened shelf life. [3] From a microbiological aspect, oxygen encourages the growth of aerobic spoilage microorganisms. [2] Therefore, the reduction of oxygen and its replacement with other gases can reduce or delay oxidation reactions and microbiological ...

  9. Colon cancer: Measuring ‘biological age’ may help predict who ...

    www.aol.com/colon-cancer-measuring-biological...

    One’s biological age, which measures the body’s physiological state, may help predict who is at risk for developing colon polyps, a known risk factor for colorectal cancer.