Define the term standard free energy change `(Delta G^(@))`. How is it related to the equilibrium constant K?

Explanation

**Step-by-Step Solution:**

1. **Definition of Standard Free Energy Change (ΔG°):**
- The standard free energy change, denoted as ΔG°, is the change in Gibbs free energy for a reaction when it occurs under standard conditions. Standard conditions typically refer to a temperature of 298 K (25°C) and a pressure of 1 atm. The standard free energy change is calculated using the formula:
\[ \Delta G° = \Delta H° - T \Delta S° \]
- Here, ΔH° is the standard enthalpy change, T is the temperature in Kelvin, and ΔS° is the standard entropy change.
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