Chemistry A-Level
Temperature dependence of Kw
What Temperature dependence of Kw means in Chemistry A-Level, as defined for OCR.
Definition of Temperature dependence of Kw
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Reference: OCR
Because the self-ionisation is endothermic, Kw increases as temperature rises, so neutral water at a higher temperature has a lower pH than 7.
Topics that use Temperature dependence of Kw
- Acids, bases and buffers (OCR A-Level)
Related terms
- Acid dissociation constant Ka
- acidic buffer
- Amphiprotic
- basic buffer
- Basicity
- Buffer action against added acid and alkali
- Buffer action and pH resistance
- Calibration with buffer solutions
Using Temperature dependence of Kw in the exam
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