 |
|
| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z |
| • HOME • ABOUT • CATEGORIES • COPYRIGHT • NEWSLETTER   
|
bar (b)
A unit of pressure, used especially in giving the pressure of a planet's or moon's atmosphere. One bar is the pressure created by a column of mercury 75.006 cm high at 0°C. It is approximately the average pressure at sea-level on the Earth. 1 bar = 0.987 atmospheres = 1.02 kg/cm2 = 100 kilopascals = 14.5 lb/sq. in. Atmospheric pressures are often quoted in millibars (mb), or thousandths of a bar. Standard atmospheric pressure (at sea level) is 1.01325 bars, or 1,013.25 millibars.
Related category
• UNITSAlso on this site:
Encyclopedia of Alternative Energy & Sustainable Living
Encyclopedia of History