At chemical equilibrium, the — Chemical Equilibrium Chemistry Question

💡 Solution & Explanation

At chemical equilibrium (at constant temperature and pressure), the Gibbs free energy (G = H - TS) of the system reaches its minimum value, meaning dG = 0 (the *change* in free energy is zero, not the absolute free energy). Reaching this minimum typically aligns with minimizing the enthalpy (H) and maximizing the entropy (S). Therefore, correct answer is A,B,C.