relationship between reactivity and cell voltage (1 Viewer)

[thebigticket]

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.

 

[deswa1]

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

 

[thebigticket]

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

 

[someth1ng]

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

That's true for metals (in general).