Natural Log


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nelms6678
Posts: 53
Joined: Fri Sep 29, 2017 7:07 am

Natural Log

Postby nelms6678 » Tue Jan 23, 2018 5:06 pm

Will there ever be an instance where the natural log of the volumes not be needed? I noticed some notations for irreversible work of expansion as w= -nRT(V2/V1) without the ln, is it just implied?
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AtreyiMitra2L
Posts: 169
Joined: Fri Sep 29, 2017 7:03 am
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Re: Natural Log

Postby AtreyiMitra2L » Tue Jan 23, 2018 5:36 pm

Well, usually for irreverisible, work = -Pex * (delta V). I am not sure where your equation came from. I believe in this class for reversible, isothermal expansion, all you have to worry about is the one with natural log.
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