• Congratulations to the Class of 2024 on your results!
    Let us know how you went here
    Got a question about your uni preferences? Ask us here

Difference between galvanic and electrolytic cell? (1 Viewer)

renny 123

Member
Joined
May 1, 2008
Messages
94
Location
Wambi
Gender
Female
HSC
2009
Im not sure if Im the only one who finds this confusing? could someone please check if this is right?

Galvanic cell: anode -ve
cathode +ve
more active substance oxidised at anode
less active substance reduced at cathode
+ cations --> cathode
-ve anions --> anode
Electrolytic: not spontaneous
anode +ve
cathode -ve
substance with -ve valency oxidised at the +ve anode
substance with +ve valency reduced at the -ve cathode
+ve cations--> cathode
-ve anions-->

Thanks in advance
 

aero135

Super Ultimate User!
Joined
Oct 23, 2007
Messages
242
Gender
Male
HSC
2008
Galavanic is the battery and electrolytic is he generator think of it as the opposite. It is the one RECHARGING the battery. Thus, the reactions are reversed.
 

Pwnage101

Moderator
Joined
May 3, 2008
Messages
1,408
Location
in Pursuit of Happiness.
Gender
Undisclosed
HSC
N/A
galvanic: chemical potential energy converte into electricl energy

electrolytic: electrical energy converted into chemical energy
 

Aerath

Retired
Joined
May 10, 2007
Messages
10,169
Gender
Undisclosed
HSC
N/A
Pwnage101 said:
galvanic: chemical potential energy converte into electricl energy

electrolytic: electrical energy converted into chemical energy
That's essentially the definition that the Board of Studies requires of us.
 
Joined
Oct 23, 2005
Messages
116
Location
Fairfield West
Gender
Male
HSC
N/A
I don't recall needing to know about electrolytic cells in Production of Materials. Which dotpoint does this fall under?
 

study-freak

Bored of
Joined
Feb 8, 2008
Messages
1,133
Gender
Male
HSC
2009
Im not sure if Im the only one who finds this confusing? could someone please check if this is right?

Galvanic cell: anode -ve
cathode +ve
more active substance oxidised at anode
less active substance reduced at cathode
+ cations --> cathode
-ve anions --> anode
Electrolytic: not spontaneous
anode +ve
cathode -ve
substance with -ve valency oxidised at the +ve anode
substance with +ve valency reduced at the -ve cathode
+ve cations--> cathode
-ve anions-->

Thanks in advance
I'd be very careful and not say that.
Water can both be oxidised and reduced in an electrolytic cell.
Yet, it doesn't have a +/- "valency." It's just a dipole.
So you must mention molecules as well.

I wouldn't say "valency" too... It's dodgy.
Charge would be better.
 

Users Who Are Viewing This Thread (Users: 0, Guests: 1)

Top