How do I convert mm of mercury to Pascals, atm's and millibars?

Question

The problem is an atmospheric is 730 mm of mercury what is this in pascals, atms and millibars?

Thank YOU!! :)

Answer 1

1 atm is defined as:

1 atm = 760 mmHg = 1013.25 mbar

1 Pa, being the SI unit of pressure, is defined as 1 N/m^2.

The definition of the "bar" is historically, the nearest power of 10 metric unit of pressure to 1 atm, and this happens to be

1 bar = 10^5 Pa

and of course,

1 mbar = 10^-3 bar = 100 Pa = 1 hectoPascal



So 730 mmHg

= 730/760 atm = (730/760)*1013.25 mbar = (730/760)*101,325 Pa

= 97325 Pa = 0.9605 atm = 973.25 mbar





A word about mmHg,

... also called torr, after Torricelli, who discovered the principle of the barometer:

The pressure exerted by a column of height h, of a fluid of density ρ, is

P = ρgh

where g = acceleration of gravity.

By adopting standard values for ρ(Hg) & g:

ρ(Hg) = 13.5951 g/cm^3 = 13595.1 kg/m^3

g = 9.80665 m/s^2

you will get

760 mmHg = 1013.25 mbar

Answer 2

IF the manometer is crammed with mercury.. ie Hg.. then you definitely examine the version quickly as mmHg (or inHg.. or mHg.. or cmHg.. based on the instruments) if the version is 152mm, then examine that as 152mmHg if the version is 200mm, then examine it as 200mmHg 142mmHg 235mmHg etc.. why? for the reason this is mm OF Hg... ie mmHg *********** if the manometer is crammed with a various fluid, then use this equation.. mmHg = (mm-different fluid) x (density different fluid / density mercury) occasion.. 50" H2O = ? mmHg? mmHg = 50 inches H2O x (a million.00g/mL / 13.5g/mL) x (25.4mm / in) = ninety 4 mmHg ************* ************* as to the particular undertaking handy...assuming the manometer is crammed with mercury... 152mmHg x (a million torr / 1mmHg) = 152 torr 152mmHg x (a million atm / 760 mmHg) = 0.2 hundred atm 152mmHg x (1atm / 760mmHg) x (101325 Pa / 1atm) = 2.03x10^4 Pa 200mmHg x (a million torr / 1mmHg) = 2 hundred torr 200mmHg x (a million atm / 760 mmHg) = 0.263 atm 200mmHg x (1atm / 760mmHg) x (101325 Pa / 1atm) = 2.67x10^4 Pa 142mmHg x (a million torr / 1mmHg) = 142 torr 142mmHg x (a million atm / 760 mmHg) = 0.187 atm 142mmHg x (1atm / 760mmHg) x (101325 Pa / 1atm) = a million.89x10^4 Pa 235mmHg x (a million torr / 1mmHg) = 235 torr 235mmHg x (a million atm / 760 mmHg) = 0.309 atm 235mmHg x (1atm / 760mmHg) x (101325 Pa / 1atm) = 3.13x10^4 Pa *********** as to the rigidity interior the flask.. If the point is larger on the flask ingredient, then the rigidity interior the flask is below atmospheric via the version. flask rigidity = 640 torr - 152 torr = 488 torr flask rigidity = 640 torr - 2 hundred torr = 440 torr flask rigidity = 640 torr - 142 torr = 498 torr flask rigidity = 640 torr - 235 torr = 405 torr if the lever is larger on the atmospheric ingredient, the rigidity interior the flask is larger than atmospheric via the version flask rigidity = 640 torr + 152 torr = 792 torr flask rigidity = 640 torr + 2 hundred torr = 840 torr flask rigidity = 640 torr + 142 torr = 782 torr flask rigidity = 640 torr + 235 torr = 875 torr

Answer 3

Mm Of Mercury

Answer 4

Mbar To Atm