enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Liquid nitrogen - Wikipedia

    en.wikipedia.org/wiki/Liquid_nitrogen

    Liquid nitrogen is a compact and readily transported source of dry nitrogen gas, as it does not require pressurization. Further, its ability to maintain temperatures far below the freezing point of water, specific heat of 1040 J ⋅kg -1 ⋅K -1 and heat of vaporization of 200 kJ⋅kg -1 makes it extremely useful in a wide range of applications ...

  3. List of conversion factors - Wikipedia

    en.wikipedia.org/wiki/List_of_conversion_factors

    Conversions between units in the metric system are defined by their prefixes (for example, 1 kilogram = 1000 grams, 1 milligram = 0.001 grams) and are thus not listed in this article. Exceptions are made if the unit is commonly known by another name (for example, 1 micron = 10 −6 metre).

  4. Liquefaction of gases - Wikipedia

    en.wikipedia.org/wiki/Liquefaction_of_gases

    Liquid nitrogen Liquefaction of gases is physical conversion of a gas into a liquid state ( condensation ). The liquefaction of gases is a complicated process that uses various compressions and expansions to achieve high pressures and very low temperatures, using, for example, turboexpanders .

  5. Parts-per notation - Wikipedia

    en.wikipedia.org/wiki/Parts-per_notation

    For example, the conversion factor between a mass fraction of 1 ppb and a mole fraction of 1 ppb is about 4.7 for the greenhouse gas CFC-11 in air (Molar mass of CFC-11 / Mean molar mass of air = 137.368 / 28.97 = 4.74). For volume fraction, the suffix "V" or "v" is sometimes appended to the parts-per notation (e.g. ppmV, ppbv, pptv).

  6. Standard cubic centimetres per minute - Wikipedia

    en.wikipedia.org/wiki/Standard_cubic_centimetres...

    For some usage examples, consider the conversion of 1 SCCM to kg/s of a gas of molecular weight , where is in kg/kmol. Furthermore, consider standard conditions of 101325 Pa and 273.15 K, and assume the gas is an ideal gas (i.e., =).

  7. Liquid nitrogen mishap kills 750,000 fish in rivers in Iowa ...

    www.aol.com/liquid-nitrogen-mishap-kills-750...

    NEW Cooperative, Inc. in Red Oak notified officials Monday, March 11, that a valve on an aboveground tank storing liquid nitrogen fertilizer was left open all weekend, according to a March 28 news ...

  8. Orders of magnitude (mass) - Wikipedia

    en.wikipedia.org/wiki/Orders_of_magnitude_(mass)

    A teaspoon (5 ml) of neutron star material (5000 million tonnes) [117] 10 13: 1 × 10 13 kg Mass of comet 67P/Churyumov–Gerasimenko [118] 4 × 10 13 kg Global annual human carbon dioxide emission [119] [120] 10 14: 1.05 × 10 14 kg Global net primary production – the total mass of carbon fixed in organic compounds by photosynthesis each ...

  9. Is Enron back? If it's a joke, some former employees aren't ...

    www.aol.com/enron-back-joke-former-employees...

    An elaborate parody appears to be behind an effort to resurrect Enron, the Houston-based energy company that exemplified the worst in American corporate fraud and greed after it went bankrupt in 2001.