Clarifying formula partial pressure mole fraction

[onedirection]

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In my notes I have Xa = Pa/P0a
Shouldn't it be P0a/Pa?

P0a --> Partial pressure of A

 

[DrBTS]

Pressure total = Mole fraction (Chi) * Partial Pressure

Yeah youre right!

 

[September24]

Pressure total = Mole fraction (Chi) * Partial Pressure

Yeah youre right!

Shouldn't it be PressureA=Molefraction(A)*PartialPressuretotal

 

[FeinMS]

Delete plz

 

[DrBTS]

Wow totally messed up Dalton's Law and made a hybrid with Rault's law.

Pressure Total = P1 + P2 + P3 + Pn

Partial Pressure 1 = Chi (Ptotal), where Chi is the mole fraction of Compound 1 ( mole Compound 1 / Mole total)

Rault's Law => VP = Chi1 ( Po1) + Chi2 (Po2) + Chi3(Po3) + Chin (VPon)

As for any confusion about mole fraction /pressure fraction, note that the two are proportional.