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Sethuraman R
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Join Date: Feb 2012
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Density of Oxygen at 204 kg Pressure

02/21/2012 1:41 AM

What is the density of oxygen at 204 kg pressure?
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SolarEagle
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#1

Re: Sethuraman R

02/21/2012 2:24 AM

You need to know the temperature....and pressure in kpa....kg is a measurement of weight not pressure....

http://www.globalspec.com/calculators/gas-density

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Sethuraman R
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#2
In reply to #1

Re: Sethuraman R

02/21/2012 5:57 AM

Thanks for the correction.What is the density of oxygen at 25 degree Celsius and pressure 204 ata?
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Crabtree
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#3
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Re: Sethuraman R

02/21/2012 6:20 AM

About 25 times its value at 1ata.

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Sethuraman R
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#4
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Re: Sethuraman R

02/21/2012 6:53 AM

Can you please give me the exact value?
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Mikerho
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#5
In reply to #4

Re: Sethuraman R

02/21/2012 8:37 AM

Approximate using Ideal Gas Law:

PV=nRT

n=m/MW, so PV=mRT/MW

rearrange: m/V = ρ =RT/PMW

MW for O2 = 32

T = 298K

I'll leave the final step for you to find the R-value with consistent units (or convert units to fit the R-value units). From there it's a piece of cake.

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vicini
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#7
In reply to #4

Re: Sethuraman R

02/27/2012 1:00 PM

.287 gm/cc
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Crabtree
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#6
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Re: Sethuraman R

02/21/2012 10:35 AM

Oooops-a-daisy. 204 times.

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