partial pressure

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partial pressure

Postby CNourian2H » Tue Jan 21, 2020 6:08 pm

what are the general units for partial pressure? I have seen bar and atm, so do both work depending on what the problem gives you?

Venus_Hagan 2L
Posts: 104
Joined: Fri Aug 02, 2019 12:16 am

Re: partial pressure

Postby Venus_Hagan 2L » Tue Jan 21, 2020 7:48 pm

i think they both work. it just depends on what you are given for that problem. My TA also mentioned that the difference between the two is very small so we can almost consider them the same thing (no need to convert between the two)

Daria Azizad 1K
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Joined: Thu Jul 25, 2019 12:15 am

Re: partial pressure

Postby Daria Azizad 1K » Tue Jan 21, 2020 8:04 pm

There is also Pa or kPa, which has a more significant difference. I think if it is necessary to convert we will be given the conversion factor.

Astrid Lunde 1I
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Joined: Sat Sep 07, 2019 12:16 am

Re: partial pressure

Postby Astrid Lunde 1I » Tue Jan 21, 2020 8:08 pm

They both work, check what units are given in the problem and use the same units.

Verity Lai 2K
Posts: 100
Joined: Sat Aug 24, 2019 12:18 am

Re: partial pressure

Postby Verity Lai 2K » Wed Jan 22, 2020 3:44 pm

Both work, it depends on what information is provided in the problem. If the units aren’t provided I wouldn’t worry about it or maybe use either one but make it clear your using it.

Posts: 104
Joined: Fri Aug 02, 2019 12:16 am

Re: partial pressure

Postby Mariah » Wed Jan 22, 2020 4:10 pm

the only reason you need to pay attention to the units is when choosing which R variable to use when using the gas law.

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