Explain the effect of temperature on pH value of pure water?
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Temperature plays a significant role on pH measurements. As the temperature rises, molecular vibrations increase which results in the ability of water to ionise and form more hydrogen ions. As a result, the pH will drop. The dissociation of water into hydrogen and hydroxide ion can be represented as:
H2O (l) ⇌ H+ (aq) + OH− (aq)
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