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Isothermal vs Reversible

Posted: Sun Feb 10, 2019 9:45 pm
by Harmony Becerra
Can someone explain the difference between isothermal and reversible systems? I understand that they require different equations but I do not know what the equations mean or when to use them.

Re: Isothermal vs Reversible

Posted: Sun Feb 10, 2019 10:35 pm
by Noah Cook 3O
Isothermal systems are reversible systems. They have a constant temperature and are less efficient with work. Irreversible reactions do not have a constant temperature (it decreases then increases in expansion) and use the W = -PV equation. Just remember that reversible and isothermal are basically synonyms here, and they both use the nRT ln (v1/v2) equation.

Re: Isothermal vs Reversible

Posted: Sun Feb 10, 2019 10:37 pm
by Brandon_Tran_2E
Actually reversible/isothermal systems are most efficient at doing work considering the area under the curve of reversible expansion vs irreversible expansion on Lavelle's outlines.