Partial Pressure 2


Partial Pressure 2 : (Phys) The fraction of the total pressure contributed by each of two or more components of a gaseous or vapor mixture. Note: Dalton's law states that total pressure is the sum of the partial pressures: P[total] = P1 + P2 + P3 + . . . . For example, the oxygen in the atmosphere accounts for 21% of the atmospheric pressure, or 3. 09 psia (21% of 14. 7 psia) = 160 mm Hg
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