deltaU for an ideal gas

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gabbymaraziti
Posts: 111
Joined: Wed Sep 18, 2019 12:19 am

deltaU for an ideal gas

Postby gabbymaraziti » Tue Feb 11, 2020 9:10 pm

Can someone please explain how to derive/where these equations come from?

deltaU = 3/2nRdeltaT = 0
and
Utot = 3/2nRT
both for an ideal gas.

Fatemah Yacoub 1F
Posts: 114
Joined: Thu Jul 11, 2019 12:16 am

Re: deltaU for an ideal gas

Postby Fatemah Yacoub 1F » Wed Feb 12, 2020 9:27 pm

I do not believe that Lavelle expects us to know them or what they are used for. He used it as an example to show that an isothermal reaction has an internal energy equal to 0.

Kishan Shah 2G
Posts: 132
Joined: Thu Jul 11, 2019 12:15 am

Re: deltaU for an ideal gas

Postby Kishan Shah 2G » Thu Feb 13, 2020 1:23 am

Exactly what was said above. Dr. Lavelle just used those in derivations and to explain concepts to us. We don't actually need to solve problems using them.


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