14.696
14.11 psia
Pure water boils at 212ºF when standard atmospheric conditions exist. Standard conditions are sea level with the baometer reading 29.92 in. Hg (14.696 psia).
Petroleum is a fossil fuel in liquid form that is obtained by drilling. Petroleum is commonly refined to produce a range of liquid fuels including: Gasoline (Petrol) Diesel Kerosene Jet Fuel Fuel Oil LPG (Liquefied Petroleum Gas) - which is only a liquid under pressure or very cold temperatures (about -40 °C) Butane - which is a liquid below about -10 °C or under moderate pressure (about 2 atm, 2 bar, 30 psia)
Air pressure occurs by gravity. Gravity sucks everything down from the atmosphere, including the air. Becasuse the air is being pulled down fast, it creates pressure from the speed of the pulling.
14.696
14.7 psia represents standard atmospheric pressure, or 1 atm. PSIA is just psi with atmospheric pressure taken into account also.
add atmosperic pressure to gage pressure to convert to psia one atm standard = 14.7 psi
PSIA is Atmospheric pressure determined by what sea level you're at it will differ its weird how it works 30 PSIA is like 15 PSI, that's not exact so don't go by cutting the numbers in half I'll get back to you on the specifics PSI is read just like a tire
PSIA is Pounds per Square Inch Absolute, as opposed to PSIG which is PSI Gauge. PSIA is absolute pressure. For example, normal atmospheric pressure is about 14.7 PSIA, so a PSIA device connected to atmosphere would read 14.7. PSIG is relative pressure, so if system pressure is 15.7 PSIA, and atmospheric pressure is 14.7 PSIA, then PSIG would be 1.0
psia=psig+atmospheric pressure where, atmospheric pressure = 14.7psi therefore psig=psia-atmospheric pressure psig=100-14.7 psig=85.3psig
Average density of seawater is 1.025, so pressure gradient is approximately 0.444 psi/ft as sea level. At bottom, the pressure is approximately 2235 psia or slightly higher, perhaps 2300 psia.
The temperature for water to change to a vapor depends upon the pressure. Liquid water changes to a vapor at 100.0 C ( 212.0 F ) at standard pressure at sea level which is 14.696 psia, 101.325 kPaa, .
psia to psig psig - 15 15 - 15= 0 psig
Atmospheric pressure at sea level is 14.7 pounds per square inch.Psia(pounds per square inch absolute) is also 14.7 pounds per square inch.However psia starts with zero pounds per square inch at 29.92 in Hg which is a vacuum measurement (absolute vacuum) in inches of mercury or in Hg.14.7 psi atmospheric pressure is as high as atmosphere pressure will ever reach. all measurements below that is a vacuum. That is where psia come in. It can start measurements in a vacuum and continue with the same unit of measurement after it comes out of the vacuum at 14.7 psi.
Below sea level atmospheric pressure increases with depth. Air pressure at sea level is about 14.7 psia. Air pressure below sea level would be slightly higher.
14.7psia = about 30inhg thus, let 14.7 be 15 for easier calculations if 15 psia = 30 inhg then 1 psia = 30/15 inhg therefore 1 psia = 2 inhg or 1 inhg = 0.5 psia so 10 inhg is about 5 psia hope this helps