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Isothermal Irreversible Expansion

Posted: Wed Jan 31, 2018 6:45 pm
by Curtis Tam 1J
Is it possible to have an isothermal IRREVERSIBLE expansion? I know that for an isothermal reversible expansion, work done on the surroundings is replaced by heat slowly. However, for an irreversible expansion, I know the expansion is fast but technically can it still be isothermal if enough heat is eventually given to the system to restore the energy lost by work?

Re: Isothermal Irreversible Expansion

Posted: Wed Jan 31, 2018 8:42 pm
by 905022356
Yes! absolutely. If the system expands fast, and the energy lost by work is replaced by heat, you can have an isothermal reversible expansion. Take in mind that, reversible expansion will do more work overall however (the area under the curve is larger).

Re: Isothermal Irreversible Expansion

Posted: Thu Feb 01, 2018 11:57 am
by Curtis Tam 1J
melinatesoro wrote:Yes! absolutely. If the system expands fast, and the energy lost by work is replaced by heat, you can have an isothermal reversible expansion. Take in mind that, reversible expansion will do more work overall however (the area under the curve is larger).

You mean isothermal irreversible expansion right?

Re: Isothermal Irreversible Expansion

Posted: Sun Feb 11, 2018 12:45 pm
by 905022356
Sorry! Yes, absolutely, I meant Irreversible expansion.