Absolute pressure: Difference between revisions
m (1 revision imported) |
energy>Jmdonev No edit summary |
||
| Line 1: | Line 1: | ||
[[Category:Done | [[Category:Done 2020-02-29]] | ||
[[File:Pressure.png|400px|thumbnail|right|Figure 1: Possible pressure measurements of a system.]] | [[File:Pressure.png|400px|thumbnail|right|Figure 1: Possible pressure measurements of a system.]] | ||
<onlyinclude>'''Absolute pressure''' is the measure of [[pressure]] with respect to ''absolute zero pressure'', which is the pressure of a perfect [[vacuum]].</onlyinclude><ref> | <onlyinclude>'''Absolute pressure''' is the measure of [[pressure]] with respect to ''absolute zero pressure'', which is the pressure of a perfect [[vacuum]].</onlyinclude><ref>Physics for Scientists and Engineers by Randall Knight, 4the edition pg 365. Published by Pearson, 2017.</ref> The absolute pressure measurement is required for the [[ideal gas law]] in the same sense that [[temperature]] must be represented by its absolute unit, the [[Kelvin]]. | ||
Many pressure measurements on Earth, like [[tire pressure]] subtract off the pressure from the [[atmosphere]], which is a [[gauge pressure]]. This can confuse matters because this pressure is also measured in the same units. Absolute pressure is given by the gauge pressure plus [[atm|atmospheric pressure]] for measurements on Earth. | Many pressure measurements on Earth, like [[tire pressure]] subtract off the pressure from the [[atmosphere]], which is a [[gauge pressure]]. This can confuse matters because this pressure is also measured in the same units. Absolute pressure is given by the gauge pressure plus [[atm|atmospheric pressure]] for measurements on Earth. | ||
==For Further Reading== | |||
*[[Psig]] | |||
*[[Pressure]] | |||
*[[Atmosphere]] | |||
*[[PV diagram]] | |||
*[[Gauge pressure]] | |||
*[[Energy conversion technology]] | |||
*Or explore a [[Special:Random|random page]] | |||
==References== | ==References== | ||
{{reflist}} | {{reflist}} | ||
[[Category:Uploaded]] | [[Category:Uploaded]] | ||
Revision as of 19:26, 31 January 2020
Absolute pressure is the measure of pressure with respect to absolute zero pressure, which is the pressure of a perfect vacuum.[1] The absolute pressure measurement is required for the ideal gas law in the same sense that temperature must be represented by its absolute unit, the Kelvin.
Many pressure measurements on Earth, like tire pressure subtract off the pressure from the atmosphere, which is a gauge pressure. This can confuse matters because this pressure is also measured in the same units. Absolute pressure is given by the gauge pressure plus atmospheric pressure for measurements on Earth.
For Further Reading
- Psig
- Pressure
- Atmosphere
- PV diagram
- Gauge pressure
- Energy conversion technology
- Or explore a random page
References
- ↑ Physics for Scientists and Engineers by Randall Knight, 4the edition pg 365. Published by Pearson, 2017.