partial pressure

[inaccensa]

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A quick q regarding partial pressure, Lets say there is oxygen, nitrogen and CO2 in a container and then we additionally add another halogen. Will the partial pressure of oxygen,nitrogen and carbondixode remain constant?

 

[thatguy687]

As long as all the conditions remain the same.The partial pressure of each molecule remains the same but the total pressure of the system increases.

 

[inaccensa]

As long as all the conditions remain the same.The partial pressure of each molecule remains the same but the total pressure of the system increases.

gr8 thanks

 

[Tokspor]

A quick q regarding partial pressure, Lets say there is oxygen, nitrogen and CO2 in a container and then we additionally add another halogen. Will the partial pressure of oxygen,nitrogen and carbondixode remain constant?

I think the partial pressure would depend on how much halogen is actually added. For example, we know that P(a) = X(a)*P(total). If P(total) increases, so does P(a). But adding more moles of another compound will decrease the mole fractions of all of the compounds. If P(total) is enough to compensate for this decrease in mole fraction, then P(a) might increase.

But if adding a large number of moles of halogen only increases P(total) by a little bit, then consider that X(a) will decrease dramatically while P(total) has only increased slightly. This will lead to a lower P(a). So in summary, it would depend on what's being added, wouldn't it?