What is the criteria for spontaneity in terms of free energy change ?

Explanation

To determine the criteria for spontaneity in terms of free energy change, we will analyze the Gibbs free energy change (ΔG) and its relationship with spontaneity.

### Step-by-Step Solution:

1. **Understanding Gibbs Free Energy (ΔG)**:
- Gibbs free energy is a thermodynamic potential that helps predict the spontaneity of a process at constant temperature and pressure.
- The change in Gibbs free energy (ΔG) is calculated using the formula:
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