Pressure of O2 at sea level Calculation
Partial Pressure Of Inspired Oxygen - Calculates Pressure of O2 at sea level. at sea level, the atmosphereic pressure is 760 mm Hg.
This equals the force exerted by a column of mercury 760 mm high. Since the atmosphere is 21% oxygen, the partial pressure of O2 is 0.21 x 760 = 160 mm Hg
