What Is the Density of Compressed Air?

[gg_1]

does anyone happen to know the density of compressed air?

 

[minger]

It's whatever I want it to be.

 

[mgb_phys]

It's whatever I want it to be.

Start with the density of normal air then multiply by however many atmospheres of pressure it's under.

 

[kandelabr]

you should start with

pV = mRT, divide by (V R T), and you get

m/V = p/RT.

p - pressure [Pa], V - volume [m³], m - mass [kg], R - gas constant (287 kJ/kg), T - temperature [K]

note that this is for ideal gas and so only accurate for high temperatures (room) and low pressures (up to 40, 50 bar).

check out this page: http://en.wikipedia.org/wiki/Compressibility_chart

 

[Bob S]

For 1 atm (760 mm Hg, or ~100,000 Pa) dry air at 20 deg C, the density is about 1.20 kilograms per cubic meter.

 

[Topher925]

>0.0 kg/m³