ELECTRIDE POTENTIALS /NMR Flashcards
1
Q
What are fuels used for
A
Used to regenerate an electric current and don’t need to be electrically charged
2
Q
Standard conditions for a cell
A
298K
100kPa
1.00 mol dm-3 solution
3
Q
Why might the current produced by a cell fall to 0?
A
All reactant used up
4
Q
What happends to cell once reactant used up?
A
Stops working
5
Q
Why is Pt suitable electrode?
A
Unreactive & cunducts electricity
6
Q
Salt bridges
A
Ions free to move
Unreactive with electrode
7
Q
Why may a hydrogen oxygen fuel cell not be completely carbon neutral?
A
Because it releases co2 in the burning of fossil fuels to produce electricity to generate hydrogen
8
Q
What is the main environmental advantage to using a hydrogen oxygen fuel cell to power a car?
A
It does not give out pollutants such as co2/ water is the only product
