Chemistry Create a Gibbs Free Energy challenge question

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SUMMARY

The discussion focuses on creating a Gibbs Free Energy challenge question that incorporates bond energy calculations to determine enthalpy changes for exothermic and spontaneous reactions. The proposed method involves using the exothermic enthalpy to adjust the temperature of reactants and products, thereby affecting the Gibbs free energy and equilibrium constant. The participant seeks guidance on calculating the new Gibbs free energy change and extrapolating entropy at different temperatures, specifically mentioning the use of n Cp delta(T) for enthalpy. Additional considerations include the inclusion of isomers in the challenge question.

PREREQUISITES
  • Understanding of Gibbs Free Energy and its implications in thermodynamics
  • Knowledge of bond energy and enthalpy calculations
  • Familiarity with the concept of equilibrium constants
  • Basic principles of entropy and temperature effects on chemical reactions
NEXT STEPS
  • Research methods for calculating Gibbs Free Energy changes at varying temperatures
  • Explore the relationship between enthalpy, entropy, and temperature in chemical reactions
  • Learn about the role of isomers in thermodynamic calculations
  • Investigate advanced thermodynamic concepts such as the Van't Hoff equation
USEFUL FOR

Chemistry students, educators designing challenge problems, and anyone interested in advanced thermodynamic concepts and their applications in chemical reactions.

jaumzaum
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Homework Statement
My teacher asked us to create an extremely difficult question that involves Gibbs free energy and/or isomers.
Relevant Equations
G=H-TS
I was thinking about giving the bond energy to calculate the enthalpy change of some exothermic and spontaneous reaction. Than using that exothermic enthalpy to heat the own products and reagents. That would change the Gibbs free energy of the equation (as the elements will be in a different temperature). That way the equilibrium constant will also change. Than I can say that if I put x moles of the reagent, how much product will be formed? Or how much reagent will still left?

For that it would be needed to calculate the new Gibbs free energy change and to extrapolate the enthalpy and entropy to that temperature. For the first one we could use n Cp delta(T), but I don’t know how to extrapolate the second. Also, it would be nice to put some isomers into the question, I don’t know.

Feel free to give some opinions. How could I get all of that together into a well structred question? Any other topic that you think it would be nice to put there? Or even some totally different question. It does not worth anything, it’s just for the class and the teacher try to solve difficult questions in the class and prepare for the test.
 
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