AIIMS 2019 Chemistry Gibbs Free Energy MCQ Question
Assertion : At equilibrium, .
Reason : At equilibrium, .
If both assertion and reason are true and reason is the correct explanation of assertion.
If both assertion and reason are true but reason is not the correct explanation of assertion.
If assertion is true but reason is false.
If both assertion and reason are false.
Correct Answer
Detailed Explanation
At equilibrium, the change in Gibbs free energy (ΔG) is zero, which leads to the equation ΔG° = -RT log Kc. This relationship indicates that the standard Gibbs free energy change (ΔG°) is directly related to the equilibrium constant (Kc) for the reaction, where R is the universal gas constant and T is the temperature in Kelvin. Other options are not applicable as they do not provide relevant information or alternative interpretations of the equation. Understanding this relationship is crucial for predicting the spontaneity of reactions and their equilibrium positions.
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