Question

what is the pressure of air at sea level

Answer 1

Atmospheric pressure at sea level is approximately 100,000 Pascal's (101,325 Pa by definition.) Air pressure is usually measured in hectopascals (hPa), the hecto prefix corresponding to 100 (a hecatre is a square with 100m sides), so 1 atmosphere is approximately 1000 hPa

Answer 2

The pressure of air at sea level is 760 mm of hg.

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