Atmospheric pressure
Altitude variation
Pressure on Earth varies with the altitude of the surface; so air pressure on mountains is usually lower than air pressure at sea level.

Atmospheric pressure

Section Title: Altitude variation
Table Section Text: Pressure on Earth varies with the altitude of the surface; so air pressure on mountains is usually lower than air pressure at sea level.

Parameter	Description	Value

p0	Sea level standard atmospheric pressure	101325 Pa

L	Temperature lapse rate, = g/cp for dry air	~ 0.0065 K/m

cp	Constant-pressure specific heat	1004.68506 J/(kg·K)

T0	Sea level standard temperature	288.15 K

g	Earth-surface gravitational acceleration	9.80665 m/s2

M	Molar mass of dry air	0.02896968 kg/mol

R0	Universal gas constant	8.31582991 J/(mol·K)

Sentence(s)

The standard atmosphere is a unit of pressure defined as 101325 Pa.

final_sentence: The standard atmosphere is a unit of pressure defined as 101325 Pa.