Asked by Tobie Perkins on Jul 31, 2024
Verified
Which of the following correctly expresses the standard Gibbs free energy change of a reaction in terms of the changes in enthalpy and entropy?
A) ΔG° = ΔH° - TΔS°
B) ΔG° = ΔH° + TΔS°
C) ΔG° = ΔS° - TΔH°
D) ΔG° = ΔS° + TΔH°
E) none of the above
Standard Gibbs Free Energy
A thermodynamic property used to predict the direction of chemical reactions and the extent to which reactions proceed.
Enthalpy
A thermodynamic property representing the total heat content of a system, used to quantify the heat changes that occur in chemical reactions at constant pressure.
Entropy
A measure of the disorder or randomness in a system, often related to the number of available states a system can occupy.
- Gain an insight into the fundamentals of Gibbs free energy and the roles played by enthalpy and entropy within chemical reactions.
Verified Answer
SP
Sunny PastagiaAug 04, 2024
Final Answer :
A
Explanation :
This is the correct expression for the standard Gibbs free energy change of a reaction in terms of the changes in enthalpy and entropy. The equation states that the standard Gibbs free energy change (ΔG°) is equal to the change in enthalpy (ΔH°) minus the product of temperature (T) and the change in entropy (ΔS°).
Learning Objectives
- Gain an insight into the fundamentals of Gibbs free energy and the roles played by enthalpy and entropy within chemical reactions.