Pure water self-ionizes. This endothermic reaction is represented by the equation:
H2O(l) + H⁺(aq) ------- H⁺(aq) + OH⁻(aq)
Which is true for pure water between O°C and 100°C?
- The concentrations of H⁺ and OH⁻ are equal between 0°C and 100°C
- An increase in temperature causes the pH to fall
- An increase in temperature causes the electrical conductivity to decrease
The answer is 1) and 2), could someone explain why?