3.If the atmospheric pressure for today is 30.75 in Hg. What is this measurement in mm H2O?Remember to always?
3.If the atmospheric pressure for today is 30.75 in Hg. What is this measurement in mm
H2O?Remember to always include units in your calculations!
mm water
回答 (4)
The relative density of Hg = 13.6
Pressure
= 30.75 in Hg
= 30.75 × 13.6 in water
= 418.20 in water
Atmospheric Pressure Today
< 781.05mm is wrong. >
That should be pretty obvious. 30.75 inches of Hg is about 1 atm. 1 atm is about 34 feet of water which would be just over 10 m of water or 10,000 mm.
The specific gravity of mercury is about 13.55, water is about 1.0 so 30.75 inches Hg is 30.75 * 13.55 / 1.0 = 416.7 inches of water. 1 inch = 25.4 mm
416.7 inches of water = 10,583 mm water
(30.75 inHg) X (760 mmHg / 29.92 inHg) X (13.56 mm H2O / 1 mmHg)
= 10,591.484 mm H2O <<< round as appropriate
收錄日期: 2021-04-18 14:41:08
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