In terms of work, the decrease in free energy during a process is equal to `"…................"`

Explanation

To answer the question regarding the relationship between the decrease in free energy and work, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Free Energy**: Free energy, specifically Gibbs free energy (G), is a thermodynamic potential that measures the maximum reversible work that can be performed by a thermodynamic system at constant temperature and pressure.

2. **Defining Change in Free Energy**: The change in Gibbs free energy (ΔG) during a process indicates the amount of energy available to do work. A decrease in free energy (ΔG < 0) suggests that the system can perform work.

...