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The relationship between the torr and the millimeter of mercury is: 1 Torr = 0.999 999 857 533 699... mmHg; 1 mmHg = 1.000 000 142 466 321... Torr; The difference between one millimeter of mercury and one torr, as well as between one atmosphere (101.325 kPa) and 760 mmHg (101.3250144354 kPa), is less than one part in seven million (or less than ...
Firstly, as the air enters the lungs, it is humidified by the upper airway and thus the partial pressure of water vapour (47 mmHg) reduces the oxygen partial pressure to about 150 mmHg. The rest of the difference is due to the continual uptake of oxygen by the pulmonary capillaries , and the continual diffusion of CO 2 out of the capillaries ...
It is denoted mmHg [3] or mm Hg. [ 4 ] [ 2 ] Although not an SI unit, the millimetre of mercury is still often encountered in some fields; for example, it is still widely used in medicine , as demonstrated for example in the medical literature indexed in PubMed . [ 5 ]
Pressure at which water boils at room temperature (22 °C) (20 mmHg) [43] 5 kPa 0.8 psi Blood pressure fluctuation (40 mmHg) between heartbeats for a typical healthy adult [44] [45] 6.3 kPa 0.9 psi Pressure where water boils at normal human body temperature (37 °C), the pressure below which humans absolutely cannot survive (Armstrong limit ...
For nearly all intents and purposes, torr is the same as mmHg. However, in most scientific journals, torr usually refers to mmHg (Absolute), (ie: 0 torr = total vacuum), whereas mmHg refers to non-absolute readings, (ie: 0 mmHg = air pressure = 760 torr. Likewise, total vacuum = -760 mmHg). So, 120/80 mmHg will usually equal 880/840 torr .
The coworker of a newly married woman says she used their recent company holiday party to swindle wedding gifts. After sharing a "sob story" about how she wasn't given enough money from her guests ...
The ubiquity of this instrument led to mmHg becoming a common unit of measure of pressure. It is also related to another unit of pressure, the torr. The mmHg is not an SI unit but is still sometimes found in use, particularly in medicine. [6] In SI units, 1 mmHg is approximately 133 Pa . [7]
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