Zeta potential (or electrokinetic potential) is the

Explanation

To answer the question about zeta potential (or electrokinetic potential), we can break down the explanation into clear steps:

### Step-by-Step Solution:

1. **Definition of Zeta Potential**:
Zeta potential is defined as the potential difference that exists between the stationary layer of compensating charges and the diffuse layer in a solution.

2. **Understanding the Layers**:
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