Photo AI
Some electrode potential data are shown - AQA - A-Level Chemistry - Question 12 - 2022 - Paper 3
Question 12
Some electrode potential data are shown. Zn²⁺(aq) + 2 e⁻ → Zn(s) E° = -0.76 V Pb²⁺(aq) + 2 e⁻ → Pb(s) E° = -0.13 V Which is a correct statement about this cell? ... show full transcript
Worked Solution & Example Answer:Some electrode potential data are shown - AQA - A-Level Chemistry - Question 12 - 2022 - Paper 3
Step 1
A. Electrons travel in the external circuit from zinc to lead.
Answer
In an electrochemical cell, the flow of electrons occurs from the anode (zinc in this case) to the cathode (lead). Therefore, this statement is correct as the electrons indeed travel in the external circuit from zinc to lead, supporting the direction of spontaneous redox reaction.