## bars vs atm

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Kaylee Clarke 1G
Posts: 103
Joined: Fri Aug 30, 2019 12:15 am

### bars vs atm

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

KeyaV1C
Posts: 103
Joined: Sat Aug 17, 2019 12:17 am
Been upvoted: 1 time

### Re: bars vs atm

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: 100
Joined: Wed Sep 18, 2019 12:19 am

### Re: bars vs atm

Mainly ensure consistency with units.

Morgan Carrington 2H
Posts: 54
Joined: Wed Nov 14, 2018 12:22 am

### Re: bars vs atm

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: 103
Joined: Sat Sep 07, 2019 12:16 am

### Re: bars vs atm

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: 95
Joined: Wed Nov 14, 2018 12:19 am

### Re: bars vs atm

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: 108
Joined: Sat Sep 07, 2019 12:16 am

### Re: bars vs atm

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: 100
Joined: Sat Aug 24, 2019 12:15 am

### Re: bars vs atm

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.