Rainwater
National Hazard
Posts: 799
Registered: 22-12-2021
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Mood: indisposition to activity
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Thermodynamics Find Enthalpy and Entropy experimentally
How is the required data for Gibbs's free energy problem found experimentally?
Any recommendations for literature or lab procedures?
Rambling:
I have not been able to find consistent data for some compounds [Rh Pd Au Pt Ir] and want to complete the table I found online
I have a DIY calorimeter I've been playing with. Using known and well-studied reactions to attempt to verify thermodynamic data I've seen online.
I've been thinking of different ways to accurately measure the change in volume without affecting pressure.
Also, I'm curious about how Gibbs free energy and activation energy are related, and if there is a way to use gibbs to better understand how catalyst
work and what the intermediate products are.
Findings:
https://www2.chem.wisc.edu/deptfiles/genchem/netorial/module...
[Edited on 18-11-2022 by Rainwater]
"You can't do that" - challenge accepted
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Lionel Spanner
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Posts: 163
Registered: 14-12-2021
Location: near Barnsley, UK
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The Gibbs energy is related to the equilibrium position at a given temperature.
ΔG = -RT ln K, where K is the equilibrium constant, T is the temperature in Kelvin and R is the ideal gas constant.
It has nothing to do with the reaction rate or mechanism, only the ultimate outcome of the reaction.
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