Question

Why the pH value increases on diluting an acid

Answer 1

1. The formula for pH is:

pH = -log[H⁺] = log $\left[\frac{1}{\left[H^{+}\right]}\right]$

2. So, we see that pH is inversely proportion to number of H⁺ ions.

3. As we know that on dilution the number of H⁺ions decrease, so due to the inverse relation, value of pH is increasing.