CHEMISTRY GLOSSARY
Welcome to the Chemistry Base
To find the desired term in the glossary, simply type in the correct spelling of the search term and hit the search button. Please note the database is not case sensitive.
| URL: | https://glossary.periodni.com |
| Tip: | Dictionaries |
| Languages: | English, Croatian |
| Entries: | 1814 |
| Images: | 366 |
U-tube manometer
U-manometarU-tube manometer contains water or mercury in a U-shaped tube, and is usually used to measure gas pressure. One end of the U tube is exposed to the unknown pressure field (P) and the other end is connected to a reference pressure source (usually atmospheric pressure) (Pref), shown in the schematic below.
If fluid C is the atmosphere, fluid B is the liquid in the U tube (e.g. water or mercury), and fluid A is a gas, then we can assume that ρB >> ρA, ρC. The pressure contributed by the weight of gas within the U tube can therefore be neglected. The gage pressure of the gas can be approximated by,
Citing this page:
Generalic, Eni. Croatian-English Chemistry Dictionary & Glossary. 20 Oct. 2018. KTF-Split. {Date of access}. <https://glossary.periodni.com>.
English