Pressure units


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Reva Kakaria 1J
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Joined: Fri Sep 28, 2018 12:23 am
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Pressure units

Postby Reva Kakaria 1J » Tue Jan 08, 2019 1:44 pm

For units of partial pressure, should we use bars or atmospheres? What is the difference between the two?

Sydney To 1D
Posts: 60
Joined: Fri Sep 28, 2018 12:15 am

Re: Pressure units

Postby Sydney To 1D » Tue Jan 08, 2019 1:49 pm

You would commonly use torr or atmosphere as the units for partial pressure. I would stick with atmospheres to be safe. A bar is atmospheric pressure at sea level and equals 100 kilopascals.

Ian Marquez 2K
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Re: Pressure units

Postby Ian Marquez 2K » Tue Jan 08, 2019 2:57 pm

At the end of lecture, Professor Lavelle briefly stated that you should use atmosphere as the unit for partial pressure.

105085381
Posts: 44
Joined: Fri Sep 28, 2018 12:15 am

Re: Pressure units

Postby 105085381 » Tue Jan 08, 2019 6:15 pm

I think we are fine labeling the units for Kp as either bars or atmosphere. Whereas, Kc is identified in molar/moles.

Brian Cook
Posts: 34
Joined: Fri Sep 28, 2018 12:15 am

Re: Pressure units

Postby Brian Cook » Tue Jan 08, 2019 6:54 pm

I believe for Kp we use bars but for solving for anything using the equation Pv=nRT we use atmospheres. Hope this helps :)


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