Under what condition, a reversible process becomes irreversible?

Explanation

To determine the conditions under which a reversible process becomes irreversible, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Reversible Processes:**
- A reversible process is one where the reactants can be converted to products and the products can be converted back to reactants without any net change in the system. This means that the system can return to its original state.

2. **Understanding Irreversible Processes:**
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