density of mercury =
= 13.5950 grams per cubic centimeter
= 13.6 times the density of water
units of pressure measurement
(1) Torricelli (Torr): 1 atmosphere divided by 760, approximately 1 mm Hg
(2) pascal (Pa): 1 newton per square meter
1 atmosphere (physical) at sea level =
= 14.70 pounds per square inch
= 1.013 * 10^5 newtons per square meter
= 101.3 kilopascals (kPa)
= 760 mm Hg
= 1,033.2 cm water
= 1.013 * 10^6 dyne per square centimeter
1 mm Hg =
= 1.36 cm water
= 0.133 kPa
= 0.0013158 atmospheres
1 cm water =
= 0.09807 kPa
= 980 dyne per square centimeter
= 98.06 newtons per square meter
1 kPa =
= 0.00987 atmospheres
1 pound per square inch =
= 6.89 kilopascals
