electrode potentials- yr2

State the meaning of the term electrochemical series (1 mark)-2021
An EMF value for a commercial lithium-iodine cell is 2.80 V Suggest why this value is different from the value calculated in part (b) (1 mark)-2021
Suggest one reason why water isn't used as a solvent in a lithium battery.- 2021
State what must be done to maintain the EMF of this fuel cell when in use (1 mark)
State the substances and conditions needed in a standard hydrogen electrode (3 marks)
draw a graph to show how the EMF (voltage) of a hydrogen-oxygen cell changes over time (1 mark)
state the main environmental advantage of using a hydrogen-oxygen fuel cell to power a car (1 mark)
suggest why using a H-O fuel cell may not be carbon-neutral (1 mark)
risk of using a H2-O2 fuel cell in a vehicle (1 mark)
main advantage of using H2 in a H2-O2 fuel cell rather than H2 in an internal combustion engine (1 mark)
Give 2 properties of platinum that make it suitable to be used as an external conductor in a cell (2 marks)
How is a current generated in a hydrogen-oxygen fuel cell (2 marks)

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In this circuit, electrons flow through the ammeter from right to left. Suggest why the electrons move in this direction (2 marks)
Suggest why the EMF values of the acidic and alkaline hydrogen-oxygen fuel cells are the same (1 mark) -2022
function of the porous separator/ salt bridge (1 mark) -2022