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  2. Pole building framing - Wikipedia

    en.wikipedia.org/wiki/Pole_building_framing

    Poles, from which these buildings get their name, are natural shaped or round wooden timbers 4 to 12 inches (100 to 300 mm) in diameter. [4] The structural frame of a pole building is made of tree trunks, utility poles, engineered lumber or chemically pressure-treated squared timbers which may be buried in the ground or anchored to a concrete slab.

  3. Molar volume - Wikipedia

    en.wikipedia.org/wiki/Molar_volume

    The ideal gas equation can be rearranged to give an expression for the molar volume of an ideal gas: = = Hence, for a given temperature and pressure, the molar volume is the same for all ideal gases and is based on the gas constant: R = 8.314 462 618 153 24 m 3 ⋅Pa⋅K −1 ⋅mol −1, or about 8.205 736 608 095 96 × 10 −5 m 3 ⋅atm⋅K ...

  4. Barn (unit) - Wikipedia

    en.wikipedia.org/wiki/Barn_(unit)

    A barn (symbol: b) is a metric unit of area equal to 10 −28 m 2 (100 fm 2). This is equivalent to a square that is 10 −14 m (10 fm ) each side, or a circle of diameter approximately 1.128 × 10 −14 m (11.28 fm).

  5. Housebarn - Wikipedia

    en.wikipedia.org/wiki/Housebarn

    A housebarn (also house-barn or house barn) is a building that is a combination of a house and a barn under the same roof. [ 1 ] [ 2 ] Most types of housebarn also have room for livestock quarters. If the living quarters are only combined with a byre, whereas the cereals are stored outside the main building, the house is called a byre-dwelling .

  6. Standard temperature and pressure - Wikipedia

    en.wikipedia.org/wiki/Standard_temperature_and...

    For example, IUPAC has, since 1982, defined standard reference conditions as being 0 °C and 100 kPa (1 bar), in contrast to its old standard of 0 °C and 101.325 kPa (1 atm). [2] The new value is the mean atmospheric pressure at an altitude of about 112 metres, which is closer to the worldwide median altitude of human habitation (194 m).

  7. Mass fraction (chemistry) - Wikipedia

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

    Mass fraction can also be expressed, with a denominator of 100, as percentage by mass (in commercial contexts often called percentage by weight, abbreviated wt.% or % w/w; see mass versus weight). It is one way of expressing the composition of a mixture in a dimensionless size ; mole fraction (percentage by moles , mol%) and volume fraction ...

  8. Functionally classified barn - Wikipedia

    en.wikipedia.org/wiki/Functionally_classified_barn

    A pole barn in North America is a barn that is essentially a roof extended over a series of poles. They are generally rectangular and do not require exterior walls. The roof is supported by the poles, which make up the perimeter of the barn. [8] Walls may be added to pole barns but are not required for structural integrity.

  9. Standard cubic feet per minute - Wikipedia

    en.wikipedia.org/wiki/Standard_cubic_feet_per_minute

    Standard cubic feet per minute (SCFM) is the molar flow rate of a gas expressed as a volumetric flow at a "standardized" temperature and pressure thus representing a fixed number of moles of gas regardless of composition and actual flow conditions.

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