November 4th, 2016, 02:13 PM  #1 
Member Joined: Oct 2016 From: Slovenia, Europe Posts: 46 Thanks: 5  partial air pressure
calculate the density of air at the temperature 15°C (=288K) and at the pressure 99.5 kPa. Structure of the air is: 80% of volume is nitrogen, 20% of volume is oxygen. I am having problem with this task. Is there any correlation between partial pressure and partial volume? I already know that: density(air)= ( m(N2)+m(O2) ) / V 
January 8th, 2017, 08:02 AM  #2 
Newbie Joined: Jan 2017 From: Georgia Posts: 10 Thanks: 3 
P = dRT/(molar mass) P = pressure d = density R = constant, 0.08206 Lxatmxmol^1xK^1 T = temperature in K 

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air, partial, pressure 
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