atmosphere (unit) wikipedia - EAS
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- The standard atmosphere (symbol: atm) is a unit of pressure defined as 101,325 Pa (1,013.25 hPa; 1,013.25 mbar ), which is equivalent to 760 mm Hg, 29.9212 inches Hg, or 14.696 psi. The atm unit is roughly equivalent to the mean sea-level atmospheric pressure on Earth, that is, the Earth's atmospheric pressure at sea level is approximately 1 atm.en.m.wikipedia.org/wiki/Atmospheric_pressure
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The standard atmosphere was originally defined as the pressure exerted by 760 mm of mercury at 0 °C (32 °F) and standard gravity (gn = 9.80665 m/s ). It was used as a reference condition for physical and chemical properties, and was implicit in the definition of the Celsius temperature scale, which defined 100 °C … See more
A pressure of 1 atm can also be stated as:
≡ 101325 pascals (Pa) ≡ 1.01325 bar ≈ 1.033 kgf/cm ≈ 1.033 technical atmosphere ≈ 10.33 m H2O, 4 °C See moreWikipedia text under CC-BY-SA license Related searches for atmosphere (unit) wikipedia
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