Why is DeltaGo Temperature Dependent in Standard State?

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SUMMARY

DeltaGo, defined as deltaGo = - RT ln K or deltaGo = deltaHo - TdeltaSo, is temperature dependent due to the relationship between Gibbs Free Energy and temperature. The discussion clarifies that while deltaGo is referred to as Gibbs Free Energy at Standard State, the standard state itself does not vary with temperature. This distinction is crucial, as deltaGo values differ at various temperatures, such as 298K and 312K, despite being termed "standard state." The confusion arises from the common use of STP (standard temperature and pressure), which is distinct from thermodynamic standard state definitions.

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I see why, numerically speaking, deltaGo, defined as deltaGo = - RT ln K or deltaGo = deltaHo - TdeltaSo would be temperature dependent. But why is deltaGo temperature dependent, when it is simply Gibbs Free Energy at Standard State?

Is this essentially saying that the definition of standard state differs per temperature given? As in deltaGo=A for the "standard" state of 298K and 1 bar, but deltaGo=B for the "standard" state of 312K and 1 bar?

Thank you.
 
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Standard state does not take into account the temperature of a system. This is confusing because you read and hear about STP (standard temperature and pressure) which is not the same as saying standard state from the perspective of thermodynamics.

Ref: http://goldbook.iupac.org/S05925.html
 
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