thebigticket
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There was this qs that had 3 galvanic cells and with unamed elements attached to Cu electrode and had a table with their cell voltage and polarity with Cu. How do we work out which elements are more reactive.
relationship between reactivity and cell voltage (1 Viewer)
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deswa1
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Lol- do you go to Sydney Tech? Either that or our school thieved the question from a common source because we had that exact question. Ok, the way you do it:
- Note that the standard reduction tables thingo correlates quite closely with the activity series
- The higher on the table (like potassium etc.), the more reactive
- The anode is the thing undergoing oxidation (stronger reductant)-> therefore the anode is more reactive than the cathode. This will give you a rough order
- Then you look at the standard potentials between the two to work out the more reactive one
- Note that the standard reduction tables thingo correlates quite closely with the activity series
- The higher on the table (like potassium etc.), the more reactive
- The anode is the thing undergoing oxidation (stronger reductant)-> therefore the anode is more reactive than the cathode. This will give you a rough order
- Then you look at the standard potentials between the two to work out the more reactive one
thebigticket
Member
do u know where they got this qs
also how does polarity effect the reactivity
wait so the greater the cell voltage produces = electrons more readily oxidised = more reactive element
also how does polarity effect the reactivity
wait so the greater the cell voltage produces = electrons more readily oxidised = more reactive element
Last edited:
someth1ng
Retired Nov '14
That's true for metals (in general).