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The simplest equation of state for gasses is called the ideal gas law. Although it's not perfect, it's still pretty good.

The ideal gas law is stated as PV = nRT, where P is the pressure, V is the volume (of the container), n is the number of moles of gas in the container, R is a proportionality constant, equal to 0.083145 Pa*L*mol^-1*K^-1 and T is temperature, measured in Kelvin.

At sea level, the ambient pressure is roughly 1 atm, which can also be expressed in different units as 760 torr, 101325 Pascals, or 1.01325 bars.

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Audie Beatty

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3y ago

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