AQA · OCR A · Year 13
Electrode potential feasibility and concentration questions
Practise E versus E°, concentration and pressure effects, limits of feasibility, selective redox, disproportionation and redox-catalyst cycles.
E versus E°concentration effectsfeasibility limitsadvanced redox
Fresh question
Decide the chemistry before the arithmetic
0first-time correct0completed
Standard data first; actual conditions second
E° predicts the thermodynamically favoured direction under standard conditions. When concentration or gas pressure changes, reason from the half-cell equilibrium to the actual electrode potential E. A positive E°cell still says nothing about reaction rate.