Partial Pressure

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Alyssa McLeod 3E
Posts: 13
Joined: Wed Sep 21, 2016 2:59 pm

Partial Pressure

Postby Alyssa McLeod 3E » Tue Nov 15, 2016 11:05 am

If the partial pressure of a reactant is decreased, what will happen to the partial pressure of a product when reestablishing equilibrium? Does it make a difference that the question asks for "partial pressure" instead of just "pressure?" That is, if I were to write out the equilibrium constant expression and find that all partial pressures canceled except for one on the bottom, would that mean that changing that remaining "P" would have no effect on the other "P," or partial pressure, since the other cancelled?

Posts: 35
Joined: Sat Jul 09, 2016 3:00 am

Re: Partial Pressure

Postby Armo_Derbarsegian_3K » Tue Nov 15, 2016 11:57 am

A decrease in partial pressure means a decrease in concentration, which would shift the rxn left. I don't think partial pressure vs pressure matters because because a decrease in pressure would cause the same effect.

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