For the isothermal reversible expansion of an ideal gas from volume `V_(1)` to volume `V_(2)`, the work done is given by `w_(rev)="…................."` whereas for the irreversible expansion , it is given by `w_("irrev") = "…........."`.

Explanation

To solve the question regarding the work done during the isothermal reversible and irreversible expansion of an ideal gas, we can break it down into steps.

### Step-by-Step Solution:

1. **Understanding the Process**:
- We are dealing with an isothermal process, which means the temperature (T) remains constant throughout the expansion.
- We have two types of expansions to consider: reversible and irreversible.

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