755 mmhg to atm
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As elevation increases, there is less overlying atmospheric mass, so that atmospheric pressure decreases with increasing elevation. In most circumstances atmospheric pressure is closely approximated by the hydrostatic pressure caused by the weight of air above the measurement point. Atmospheric pressure, atm Definition:ĭefinition of Atmospheric pressure, atm provided by WikiPedia:Ītmospheric pressure, sometimes also called barometric pressure, is the pressure within the atmosphere of Earth (or that of another planet). One millimeter of mercury is approximately 1 torr, which is 1/760 of standard atmospheric pressure (101325760 =133.322368421 pascals). Although not an SI unit, the millimeter of mercury is still routinely used in medicine, meteorology, aviation, and many other scientific fields. Millimeter of mercury, mmhg Definition:ĭefinition of Millimeter of mercury provided by wikipedia: Conversion formulas Kilopound per square inch , Pounds per square inch (ksi, psi):
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The atmospheric pressure at sea level is 14.7 psi.Online pressure converter. Atmospheric pressure is also often stated as pounds/square inch (psi). Standard atmospheric pressure is called 1 atm of pressure and is equal to 760 mmHg and 101.3 kPa. Another commonly used unit of pressure is the atmosphere (atm). A pascal is a very small amount of pressure, so the more useful unit for everyday gas pressures is the kilopascal (kPa). The pascal (Pa) is the standard unit of pressure. An equivalent unit to the mmHg is called the torr, in honor of the inventor of the barometer, Evangelista Torricelli. One unit of gas pressure is the millimeter of mercury (mmHg). Tire pressure is best measured when the tire is cold since driving the car for a while will heat up the air in the tire and increase the pressure.Ī barometer measures gas pressure by the height of the column of mercury. The pressure on the tire is the maximum pressure for that tire, not the recommended one.
755 mmhg to atm manual#
The recommended pressure for that model of car (usually somewhere between 32-35 psi) is usually listed in the owner’s manual or stamped somewhere inside the door. The car gets better gas mileage and the tires don’t wear out as fast. The ride is smoother and safer than with lowered pressure. There are several benefits to maintaining the proper air pressure in a car tire.