Convert centimeter mercury (0°C) to nanopascal
Please provide values below to convert centimeter mercury (0°C) [cmHg] to nanopascal [nPa], or Convert nanopascal to centimeter mercury (0°C).
How to Convert Centimeter Mercury (0°c) to Nanopascal
1 cmHg = 1333223870000 nPa
Example: convert 15 cmHg to nPa:
15 cmHg = 15 × 1333223870000 nPa = 19998358050000 nPa
Centimeter Mercury (0°c) to Nanopascal Conversion Table
| centimeter mercury (0°C) | nanopascal |
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Centimeter Mercury (0°c)
Centimeter mercury (0°C) is a unit of pressure measurement representing the pressure exerted by a one-centimeter column of mercury at 0°C.
History/Origin
The centimeter mercury was historically used in barometry and pressure measurements before the adoption of the pascal. It originated from the use of mercury columns in barometers to measure atmospheric pressure, with the unit reflecting the height of the mercury column.
Current Use
Today, the centimeter mercury is largely obsolete and replaced by SI units like the pascal. However, it is still used in some medical and historical contexts to measure blood pressure and atmospheric pressure in certain regions.
Nanopascal
The nanopascal (nPa) is a unit of pressure equal to one billionth of a pascal, where 1 nPa = 10^-9 Pa.
History/Origin
The nanopascal was introduced as part of the SI unit system's extension to accommodate very small pressure measurements, primarily in scientific research involving micro- and nanoscale phenomena.
Current Use
Nanopascals are used in high-precision scientific applications such as atmospheric pressure measurements, microfluidics, and nanotechnology research where extremely low pressure differences need to be quantified.