## Changes in Partial Pressure

MaanasO 1A
Posts: 72
Joined: Fri Sep 28, 2018 12:26 am

### Changes in Partial Pressure

Whenever we come across a problem that asks for the change in the system when the partial pressure of a gas changed, do we assume that the volume/concentration has changed and that temp is konstant?

megansardina2G
Posts: 61
Joined: Fri Sep 28, 2018 12:23 am
Been upvoted: 2 times

### Re: Changes in Partial Pressure

Yes. K does not change when the pressure changes, and since K is temperature dependent you know that the temperature is also constant. Therefore, the volume/concentration has to be the changing factor.

ryanhon2H
Posts: 60
Joined: Fri Sep 28, 2018 12:28 am

### Re: Changes in Partial Pressure

I think Dr. Lavelle said in class that pressure can also be changed by pumping an inert gas, so that wouldn't change the concentration compared to changing the volume, but K would still stay the same either way.

Griffin Carter 2I
Posts: 16
Joined: Wed Nov 14, 2018 12:23 am

### Re: Changes in Partial Pressure

Temperature can be assumed to stay constant in a changing pressure but the question should state specifically whether or not the volume has changed or the pressure has changed from an inert gas because that affects the Q value when comparing to K.

Arta Kasaeian 2C
Posts: 30
Joined: Mon Jan 07, 2019 8:22 am

### Re: Changes in Partial Pressure

I think in our textbook the temperature is assumed to be stationary because if it changes everything else in the equation changes and with it so does K equilibrium constant.

Jonathan Pai 2I
Posts: 121
Joined: Fri Sep 28, 2018 12:27 am

### Re: Changes in Partial Pressure

Everything is assumed to remain the same unless it is explicitly stated.

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