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Timeline for Gibbs free energy + maximum work

Current License: CC BY-SA 3.0

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Oct 1, 2015 at 13:18 comment added CR Drost @Tonylb1 $T~dS$ is the change in internal energy due to a small change in our uncertainty about what state the system is in. I haven't completely worked out this idea in my head, but you can roughly look at it via the equipartition theorem, "I added a degree of freedom, it came with an average energy $k_B~T.$" Subtracting the $TS$ is mostly important for changing $T~dS$ into $S~dT$ but yes, you can think that up to an additive constant it is correcting for heat exchanged exothermally.
Oct 1, 2015 at 10:37 comment added Tonylb1 What I am not understanding is the Gibbs energy in any chemical reaction excluding oxydo-reduction. The value of DG is it equal to the heat exchanged in exothermal reaction? and the term TDS is a part of internal energy that does not convert to heat?
Sep 30, 2015 at 18:58 history answered CR Drost CC BY-SA 3.0