What is the standard electrode potential of a half-reaction?

Practice Questions

Q1
What is the standard electrode potential of a half-reaction?
  1. The potential at which the reaction occurs at standard conditions
  2. The potential at which the reaction occurs at any conditions
  3. The potential difference between two electrodes
  4. The energy change of the reaction

Questions & Step-by-Step Solutions

What is the standard electrode potential of a half-reaction?
  • Step 1: Understand that a half-reaction is a part of a redox reaction where either oxidation or reduction occurs.
  • Step 2: Know that standard electrode potential measures how easily a half-reaction can gain or lose electrons.
  • Step 3: Remember that standard conditions mean a concentration of 1 M, a pressure of 1 atm, and a temperature of 25°C.
  • Step 4: Realize that the standard electrode potential is expressed in volts (V).
  • Step 5: Learn that a positive value indicates a strong tendency to gain electrons (reduction), while a negative value indicates a tendency to lose electrons (oxidation).
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