Question

How is atmospheric pressure by altitude?

Answer 1

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Answer 2

Air pressure above sea level can be calculated as

p = 101325 (1 - 2.25577 10-5 h)5.25588                           (1)

where

101325 = normal temperature and pressure at sea level (Pa)

p = air pressure (Pa)

h = altitude above sea level (m)

Example - Air pressure at Elevation 10000 m

The air pressure at altitude 10000 m can be calculated as

p = 101325 (1 - 2.25577 10-5 (10000 m))5.25588

  = 26436 Pa

  = 26.4 kPa

• vacuum