bars vs atm


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Kaylee Clarke 1G
Posts: 85
Joined: Fri Aug 30, 2019 12:15 am

bars vs atm

Postby Kaylee Clarke 1G » Wed Jan 15, 2020 12:13 pm

what is the difference of units in bars vs atm? which should we be using for solving problems?

KeyaV1C
Posts: 86
Joined: Sat Aug 17, 2019 12:17 am
Been upvoted: 1 time

Re: bars vs atm

Postby KeyaV1C » Wed Jan 15, 2020 12:31 pm

1 bar is 0.986923 atm. The unit you use depends on the R value you use so that the units cancel out

rohun2H
Posts: 85
Joined: Wed Sep 18, 2019 12:19 am

Re: bars vs atm

Postby rohun2H » Wed Jan 15, 2020 2:39 pm

Mainly ensure consistency with units.

Morgan Carrington 2H
Posts: 42
Joined: Wed Nov 14, 2018 12:22 am

Re: bars vs atm

Postby Morgan Carrington 2H » Wed Jan 15, 2020 2:41 pm

I don't think there is exactly a difference except that they are two different units used to measure pressure. Just make sure that you use the same units that are given in the problem in you calculations and you should be good.

Astrid Lunde 1I
Posts: 88
Joined: Sat Sep 07, 2019 12:16 am

Re: bars vs atm

Postby Astrid Lunde 1I » Wed Jan 15, 2020 3:14 pm

They are two different units, but they do the same thing:measure pressure. As long as you are constant with what unit you use for a single problem you should be ok.

Areli C 1L
Posts: 85
Joined: Wed Nov 14, 2018 12:19 am

Re: bars vs atm

Postby Areli C 1L » Thu Jan 16, 2020 7:05 am

The units will be different and I don't think Lavelle will not mention the type of pressure (bar or atm) used in the problem. Either way, just be sure to maintain the units so you don't get points deducted.

Jialun Chen 4F
Posts: 91
Joined: Sat Sep 07, 2019 12:16 am

Re: bars vs atm

Postby Jialun Chen 4F » Thu Jan 16, 2020 9:54 am

They are both units for measuring pressure. I think as long as your units in one question remain consistent, you're all set.

Daniel Yu 1E
Posts: 77
Joined: Sat Aug 24, 2019 12:15 am

Re: bars vs atm

Postby Daniel Yu 1E » Thu Jan 16, 2020 10:11 am

It technically doesn't matter, at least for Test 1, the difference between bars and atm. It will result in different answers in different units because you use different R constants, but the answers should be interchangeable with a bit of conversion.

Max Madrzyk Dis 4G
Posts: 87
Joined: Wed Sep 18, 2019 12:21 am

Re: bars vs atm

Postby Max Madrzyk Dis 4G » Thu Jan 16, 2020 11:40 am

Both units have to deal with pressure so I think the only thing that matters is that you stay consistent throughout the problem that you are working.


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