O Levels Chemistry (5070)•5070/11/O/N/20
Explanation
Le Chatelier's Principle applied to endothermic equilibrium Steps:
- Forward reaction endothermic, so increasing temperature favors forward direction per Le Chatelier's Principle.
- Equilibrium shifts right, increasing [H+] and [OH-], thus raising Kw.
- In pure water, [H+] = [OH-] = √Kw, so both ion concentrations rise.
- pH = -log[H+]; higher [H+] means pH drops below 7. Not enough information: Changes 1, 2, and 3 not specified in question.
Final answer: Not enough information.
Topic: Reversible reactions and equilibrium
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