Question:medium
If pH of water is 7 at 25°C, then the pH of water at 180°C will:
If pH of water is 7 at 25°C, then the pH of water at 180°C will:
Updated On: Mar 25, 2026
- Increase
- Decrease
- \( H^+ \) increases, \( OH^- \) decreases
- Remains constant
Show Solution
The Correct Option is B
Solution and Explanation
An increase in temperature leads to a corresponding increase in the ionization of water. At elevated temperatures, the concentrations of \( H^+ \) and \( OH^- \) ions rise, resulting in a decrease in the pH of water. This is due to the inverse relationship between pH and the concentration of hydrogen ions.Therefore, the correct answer is option (2) Decrease.
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