A pascal is a pressure of one newton per square metre; this unit is inconveniently small for many purposes, and the kilopascal (kPa) of 1,000 newtons per square metre is more commonly used.
Its single-cylinder condensing steam engine (24-inch bore and four-foot stroke) drove two 15-foot-diameter side paddle wheels; it consumed oak and pine fuel, which produced steam at a pressure of two to three pounds per square inch.
The standard unit of permeability is the darcy, equivalent to the passage of one cubic centimetre of fluid (having a viscosity of one centipoise) per second through a sample one square centimetre in cross-sectional area under a pressure of one atmosphere per centimetre of thickness.
At the hydrogen electrode, an aqueous solution containing hydrogen in its oxidized form (the hydrogen ion, H+) at a concentration of one mole per litre is maintained at 25° C (77° F) in equilibrium with hydrogen in its reduced form (hydrogen gas, H2) at a pressure of one atmosphere.
Above a pressure of five bars, the clouds may consist of ammonia, ammonium sulfide, hydrogen sulfide and water.
The atmosphere is at a pressure of one bar at an altitude of 1.29 Jupiter radii above the planet's center.
Sufficient sugar is added to the basic wine to produce a pressure of about five or six atmospheres (units of pressure, each equal to 14.7 pounds per square inch) following fermentation, assuming there is no loss of carbon dioxide.
Results suggest that pressure vessels with a length to diameter ratio of roughly three are the most economical, and that a system should be designed for a pressure of roughly three times the minimum pressure of the expansion device.
A pressure of approximately three kilograms per square centimeter must be applied to the touchpad to stop the clock, Marculescu said.
By pressing a tiny amount of the gas between two diamonds to a pressure of 25 million pounds per square inch, they transformed it not only into a solid, but a semiconductor like silicon.
