ESS200A
Prof. Jin-Yi Yu
The Ideal Gas Law
qAn equation of state describes the relationship among
pressure, temperature, and density of any material.
qAll gases are found to follow
approximately the same equation of state, which is referred to as the “ideal gas law
(equation)”.
qAtmospheric gases, whether
considered individually or as a mixture, obey the following ideal gas equation:
P
= r R
T
pressure
Density=m/V
temperature (degree Kelvin)
gas constant (its
value depends on the gas considered)
