Error: We couldn't find a conversion between petabar and millimeter water [4 °C]
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The SI prefix "peta" represents a factor of 1015, or in exponential notation, 1E15.
So 1 petabar = 1015 bars.
The definition of a bar is as follows:
The bar is a measurement unit of pressure, equal to 1,000,000 dynes per square centimetre (baryes), or 100,000 newtons per square metre (pascals). The word bar is of Greek origin, bÃ¡ros meaning weight. Its official symbol is "bar"; the earlier "b" is now deprecated, but still often seen especially as "mb" rather than the proper "mbar" for millibars.
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