Is 1 mmHg the same as 760 atm Pressure Units and Conversion. The first row and the first column represent the units and the remaining cells are the values. What is 1 atm equal to in mmHg 1 atm 101,325 Pascals 760 mm Hg 760 torr 14.7 psi. A unit in the first column has a unit value (e.g., 1 Pa, 1 bar) while a unit in the first row have a value of its conversion factor. Similarly for Pa to Torr, Conversion Scales mmHg to atm Figure 1: mmHg and atm Conversion Scale psi to bar Figure 2: psi and bar Conversion Scale psi to kPa Figure 3: psi and kPa Conversion Scale Pascal In the above equation, 1 Torr is the unit from the first column has a unit value, and the right-hand side of the equation, 133.322 Pa, is formed from the first-row unit and the conversion factor. The SI unit of pressure is the pascal (Pa) or the newton per square metre (N m −2) or (kg m −1 s −2). The unit pascal is christened after French mathematician Blaise Pascal. One pascal is a force of one-newton perpendicular to a surface of one square metre. kPa to mmHg Conversion Table 1 mmHg 133.322 Pascals (Pa) Pascals (Pa) mmHg value x 133.322 Pa kPa value x 1000 Pa mmHg value kPa value x. Figure 4: One pascal is a force of one newton applied perpendicular to a surface of one square metre. The pascal is the recognised SI derived unit of pressure and can also be expressed in terms of SI base units. The pascal can also be expressed in terms of the joule, which is the SI unit of energy. The International Union of Pure and Applied Chemistry recommends 1 × 10 5 Pa as a reference standard pressure. The common derivatives of the pascal are the micropascal, the hectopascal, the kilopascal, the megapascal, and the gigapascal. The pascal is a very small unit, the micropascal is the smallest among them. The kilopascal is a widely used unit often atmospheric pressures are reported in kPa. The mechanical quantities like Young’s modulus, shear modulus, tensile strength, stiffness are displayed in the kilopascal (kPa) and the megapascal (MPa). The gigapascal (GPa) is preferred by geophysicists since the stresses and pressures within the Earth are in a large order of magnitude. The hectopascal (hPa) is used by meteorologists to measure the pressure of air. Note: one hectopascal is equivalent to one minibar. The bar is another common unit used to measure pressure. Figure 5: Pressure Gauge Scaled in the bar It is a metric non-SI unit and defined exactly to 1 × 10 5 Pa. The bar is slightly less than an atomophere (1 bar ≈ 0.986 923 atm). The most common derived units of the bar are the millibar (mbar), the centibar (cbar), the decibar (dbar) and the kilobar (kbar). The bar was introduced by Norwegian scientist Vilhelm Friman Koren Bjerknes. He was a well-known meteorologist and contributed to modern weather forecasting. Since then, the bar, precisely the minibar, remains a widely used unit in meteorology. The atmospheric pressures are reported mostly reported in mbar. Some scientists use the hectopascal hPa, the bar equivalent in SI, as a standard unit. Figure 6: Pressures in the map is reported in mbar. The bar is also an accepted unit in oceanography, engineering instead of the pascal. The standard atmosphere or one atmosphere (atm) is a standard pressure defined as 101 325 Pa. Using this Game Plan, you would have to use the unit equivalencies (1 atm 14.7 psi AND 1 atm 760 mm Hg) to make two conversion factors and convert to. It is a standard reference pressure recommended by the National Institute of Standards and Technology (NIST). Please visit pressure conversion to convert all pressure units.The relation between 1 atm and other units are as follows: Millimetre of Mercury (mmHg) The value of 1 atm approximately equals the atmospheric pressure at sea level. The formula to convert from mmHg to atm is: atm mmHg 760 Conversion Example Next, let's look at an example showing the work and calculations that are involved in converting from millimeters of mercury to atmospheres (mmHg to atm). To convert torr to atm, multiply the torr value by 0.00131578947 or divide by 760.Ītm (atmospheric pressure) is the force per unit area by the weight of air above that point. Torr = atm * 760 How to convert torr (mmHg) to atm?ġ Torr (mmHg) is equal to 0.00131578947 atmospheric pressure (atm). To convert atm to torr, multiply the atm value by 760. How to convert atm to torr (mmHg)?ġ Atm (atmospheric pressure) is equal to 760 torr (mmHg). Alternatively, to find out the torr value for the most commonly converted atm value, you may check the atm to torr conversion table.īelow, you will find information of how to convert atm to torr and how to convert torr to atm, including the formulas and example conversions. To convert atm (atmosphere) to torr (mmHg) and to convert torr (mmHg) to atm, you may use the converter above.
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