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# The pH of neutral water at ${{25}^{\circ }}C$ is 7.0. As the temperature increases, ionisation of water increases , however the concentration of ${{H}^{+}}$ ions and $O{{H}^{-}}$ ions are equal. What will be the pH of pure water at ${{60}^{\circ }}C$?A. Equal to 7.0B. Greater than 7.0C. Less than 7.0D. Equal to 0

Last updated date: 20th Jun 2024
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Hint: It is found that as the temperature increases, the pH will decrease. The value of pH equal to 7 is neutral, greater than 7 is basic and less than 7 is acidic in nature.

- As we know that the ionisation of water is increased as the temperature is increased, due to which${{H}^{+}}$ ions are also increased. So, we can write that since ionisation of water increases upon the increasing temperature.
That is the pH of pure water at ${{60}^{\circ }}C$ is less than 7.0.
- As we know that pH decreases with the increase in temperature, but we can say that this doesn’t mean that water becomes more acidic at high temperature. A solution is said to be acidic, if there is an excess amount of ${{H}^{+}}$ ions over $O{{H}^{-}}$ ions.