Convert centimeter water (4°C) to exapascal
Please provide values below to convert centimeter water (4°C) [cmH2O] to exapascal [EPa], or Convert exapascal to centimeter water (4°C).
How to Convert Centimeter Water (4°c) to Exapascal
1 cmH2O = 9.80638e-17 EPa
Example: convert 15 cmH2O to EPa:
15 cmH2O = 15 × 9.80638e-17 EPa = 1.470957e-15 EPa
Centimeter Water (4°c) to Exapascal Conversion Table
| centimeter water (4°C) | exapascal |
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Centimeter Water (4°c)
Centimeter water (4°C), symbol cmH2O, is a unit of pressure representing the pressure exerted by a one-centimeter column of water at 4 degrees Celsius.
History/Origin
The centimeter water was developed as a practical unit of pressure measurement in medical and engineering contexts, especially for low-pressure measurements such as respiratory and fluid pressure, originating from the use of water columns in manometers.
Current Use
It is primarily used in medical settings to measure intracranial pressure, respiratory pressures, and other low-pressure applications where precise measurement of small pressure differences is required.
Exapascal
An exapascal (EPa) is a unit of pressure equal to 10^18 pascals, used to measure extremely high pressures.
History/Origin
The exapascal was introduced as part of the International System of Units (SI) prefixes to represent very large pressure values, primarily in scientific and engineering contexts involving high-pressure phenomena.
Current Use
The exapascal is mainly used in fields such as geophysics, astrophysics, and high-pressure physics to describe immense pressures found in planetary interiors, stellar environments, and experimental high-pressure research.