Calculate the partial pressure, Physics

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A 10L helium balloon at a pressure of 2 bar at 27C. some O2 is now in balloon and final volume is made 30L. the pressure also fell to 1 bar at same temperature. the partial pressure of O2 at end is?


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Staric Johnson

3/30/2013 5:52:14 AM

p1v1=p2v2

let partial pressure of helium in 30L be P

then p1*30=2*10

p1=20/30 bar=2/3bar

partial pressure of O2=p2

p1+p2=1bar

partial pressure of O2=1/3 bar

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