pHtemperature
The term pHtemperature refers to the influence of temperature on the pH of a solution. pH is a measure of the acidity or alkalinity of a solution, specifically the concentration of hydrogen ions (H+). Temperature affects the equilibrium constant of water's autoionization, which is the process by which water molecules dissociate into H+ and hydroxide ions (OH-). At higher temperatures, the autoionization of water increases, leading to a greater concentration of both H+ and OH- ions. This means that pure water, which is neutral at 25 degrees Celsius with a pH of 7, will have a slightly lower pH at higher temperatures and a slightly higher pH at lower temperatures, even though it remains neutral in terms of its H+ and OH- concentrations.
The effect of temperature on pH is significant in various chemical and biological processes. For example, in