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delta U for reversible

Posted: Wed Feb 14, 2018 10:28 am
by Maeve Gallagher 1J
I understand that delta U is zero for an isothermal expansion, but what if it is reversible? Will delta U=0 in that case?

Re: delta U for reversible  [ENDORSED]

Posted: Wed Feb 14, 2018 11:08 am
by Chem_Mod
For an ideal gas, its internal energy is entirely a function of its temperature. Whether reversible or irreversible, change in internal energy will be zero if isothermal.

Re: delta U for reversible

Posted: Mon Feb 19, 2018 3:14 pm
by mayapartha_1D
If a system is isothermal, that means that q=0, so if the substance is reversible or irreversible, the internal energy change will still be 0-- this is because there is no change in heat!