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Maximum Energy Able to Do Work

Posted: Tue Feb 13, 2018 6:18 pm
by Isa Samad 1L
I remember in lecture that Dr. Lavelle mentioned that Gibb's Free Energy should really be called Gibb's available energy since when ∆G < 0, Gibb's free energy can be thought of as the maximum energy that a system can use to do work. I'm guessing that since Dr. Lavelle specified this definition under conditions when ∆G < 0 that when ∆G > 0, this does not hold true. In other words, does the definition of Gibb's free energy as the maximum energy that a system can use to do work hold true when the reaction in question is non-spontaneous?

Re: Maximum Energy Able to Do Work  [ENDORSED]

Posted: Wed Feb 14, 2018 12:10 pm
by Chem_Mod
∆Gsys > 0 then it is the maximum work being done on the system.

Good luck everyone with your midterm.

Re: Maximum Energy Able to Do Work

Posted: Wed Feb 14, 2018 1:04 pm
by OliviaShearin2E
Can someone clarify what types of work? Some sites say maximum reversible work and others say maximum nonexpansion work.

Re: Maximum Energy Able to Do Work

Posted: Wed Feb 14, 2018 2:16 pm
by Sirajbir Sodhi 2K
Maximum useful (nonexpansion) work is associated with Gibb's Free Energy.