Internal energy

isochoric/isometric:
isothermal:
isobaric:

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004263380
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Joined: Fri Sep 20, 2013 3:00 am

Internal energy

Postby 004263380 » Sat Feb 08, 2014 3:32 pm

Is the internal energy of an ideal gas expanding reversibly zero?
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004263380
Posts: 59
Joined: Fri Sep 20, 2013 3:00 am

Re: Internal energy

Postby 004263380 » Sat Feb 08, 2014 3:40 pm

Is the internal energy zero for an irreversible path too? When exactly is delta U zero?
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ch1995
Posts: 314
Joined: Fri Sep 20, 2013 3:00 am

Re: Internal energy

Postby ch1995 » Sat Feb 08, 2014 3:52 pm

I think Delta U = 0 for the isothermal expansion of an ideal gas, for both reversible and irreversible.
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