Partial Pressure

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partial pressure

[′pär·shəl ′presh·ər]
The pressure that would be exerted by one component of a mixture of gases if it were present alone in a container.

Partial Pressure


In a mixture of gases that occupies a certain volume, the partial pressure of each component gas is the pressure the gas would have if it alone occupied the same volume at the same temperature. Dalton’s law states that the total pressure of a mixture of gases is equal to the sum of the partial pressures of the mixture’s components. A gas’s partial pressure determines the course of the processes of diffusion, absorption, and solution of the gas, as well as of the distribution of the gas between two parts of a system where the parts are separated by a partition that is permeable to the gas.

References in periodicals archive ?
The reaction speed of volatiles was assumed independent of oxygen concentration, and the reaction of char was considered proportional to the oxygen partial pressure.
By applying equation [7] to the time profile data at different partial pressure of oxygen by non- linear least square approach using the software curve expert 3.
Firstly, it was calculated the balanced oxygen partial pressure [MATHEMATICAL EXPRESSION NOT REPRODUCIBLE IN ASCII] corresponding to the concentration in the condensate:
similar to type 1, for a deflector with constant dimensions, negative partial pressure increases as flow discharge increases.
They introduced a form of equation that does not include partial pressures or concentrations [5].
Additionally, optically thin lines were measured for subsequent partial pressure calculation.
In aviation, hypoxia typically occurs as a result of a fall in partial pressure of oxygen in the inhaled air with increasing altitudes.
M] (M = Mn, Si, Al, Cr) = 1 to calculate the equilibrium oxygen partial pressure of each oxidation reaction.
4 [degrees]F (38 [degrees] C), heart rate greater than 90 beats per minute, breathing rate greater than 20 breaths per minute or arterial partial pressure of carbon dioxide less than 4.
The cabin is pressurized, alveolar partial pressure falls with increasing altitude, and the partial pressure of oxygen is inversely proportional to altitude.
in Worcester, where she worked on partial pressure spacesuits for NASA.
8 in the equation immediately following; getting 'A' and 'a' confused as subscripts when referring to alveolar and arterial partial pressures; the partial pressure of carbon dioxide is certainly proportional to the ratio of production to alveolar ventilation, but it is certainly not equal to this ratio.

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