redox Flashcards
1
Q
is an oxidised metal positive or negative
A
negative
2
Q
is a reduced metal positive or negative
A
positive
3
Q
what factors affect electrode potential
A
changes in temp / conc/pressure
4
Q
what is the standard electrode potential
A
the voltage measured under standard conditions when the half cell is connected to a standard hydrogen electrode
5
Q
what are the issues with predicting reactions
A
the reaction kinetics might not be favourable
the conditions might not be standard
6
Q
what are the benefits of electrochemical cells
A
have High power densities
7
Q
what are the risks of electrochemical cells
A
chemicals used to make cells are flammable
8
Q
how do fuels cells work
A
react a fuel with oxygen
