Units
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Units
When we are calculating work with either constant pressure or not, do we always have to use units of atm? Can we use pascals or bar or should we convert?
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- Posts: 70
- Joined: Fri Sep 28, 2018 12:16 am
Re: Units
I would just use atm for everything, especially because R constant units are (L*atm)/(K mol).
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- Joined: Fri Sep 28, 2018 12:23 am
Re: Units
It is important to know that there’s a slight difference between bars and atm (1.013 bar = 1 atm) but from the homework problems it seems rare that they give something in terms of bars and you need to convert to atm. Atm is also helpful because of the useful conversion 101.325 J/L*atm.
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Re: Units
I usually always try to use atm since the most common gas constant is in terms of atm. Additionally, you can use 101.325 J = 1 L x atm to convert between energy and pressure/volume.
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- Joined: Fri Sep 28, 2018 12:18 am
Re: Units
Does anyone have a good summary of all the equations we should know? some of them aren't on the equation sheet...
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- Posts: 57
- Joined: Fri Sep 28, 2018 12:28 am
Re: Units
Best bet is to use atm for pressure but I'm sure the equation sheet will give us conversions between different pressure values.
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