- #1
deathlucky
- 10
- 1
just wondering how vacuum is measured in Hg say is i had a 1L bottle and was to suck half the air out how much Hg would that be?
cheers :)
cheers :)
Vacuum is measured using a unit called Torr, which is a measure of pressure. It is equivalent to 1 millimeter of mercury (mmHg). Scientists use a vacuum gauge, such as a manometer or a barometer, to measure air pressure and calculate the level of vacuum.
The standard unit of measurement for vacuum is Torr, which is equivalent to 1 millimeter of mercury (mmHg). Other common units used to measure vacuum include pascal (Pa), bar, and atmosphere (atm).
Vacuum pressure can be converted to other units of measurement using conversion factors. For example, 1 Torr is equal to 133.3224 pascals (Pa), 0.001 bar, and 0.0013158 atmosphere (atm). Scientists can use these conversion factors to convert vacuum pressure to the desired unit of measurement.
Vacuum pressure is important in scientific experiments because it affects the behavior of gases and their interactions with other materials. By creating a vacuum, scientists can control the environment and study the properties and reactions of gases without interference from air molecules. Vacuum pressure is also crucial in certain industrial processes, such as semiconductor manufacturing and vacuum distillation.
The accuracy of vacuum measurements in scientific experiments depends on the type of vacuum gauge used and the calibration of the equipment. Most vacuum gauges have an accuracy of +/- 0.1% to +/- 1% of the measured value. However, in highly precise experiments, specialized vacuum gauges with accuracies of +/- 0.01% or better may be used.