Which of the following thermodynamic relations accurately defines the reaction quotient () in terms — Chemical Equilibrium Chemistry Question
Question
Which of the following thermodynamic relations accurately defines the reaction quotient ($Q$) in terms of standard Gibbs free energy ($\Delta G^\circ$) and instantaneous non-standard Gibbs free energy ($\Delta G$)?
Answer: B
💡 Solution & Explanation
The fundamental thermodynamic equation relating non-standard free energy to the reaction quotient is $\Delta G = \Delta G^\circ + RT \ln Q$. At equilibrium, $\Delta G = 0$ and $Q = K$, simplifying to $\Delta G^\circ = -RT \ln K$.
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