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Voltage or potential difference is a measure of the amount of work required to move one coulomb of charge (a coulomb is the SI unit for charge) from one point in the circuit to another. So say the voltage (in the case of a galvanic cell) is 1.5 V, then it takes 1.5 J of energy to move 1 coulomb of charge between the electrodes.I've googled what potential difference is in this context but all it is giving me are definitions that I don't understand and analogies. I know that it is synonymous for voltage, but I don't understand what it actually is and how it applies to the electrodes in the Galvanic cell. Can someone please explain this to me?
EMF definition in textbook:
The electromotive force or EMF of a galvanic cell is the potential difference (voltage) across the electrodes of the cell when a negligibly small current is being drawn. It is the maximum voltage that the cell can deliver.
Thank you!
Ah alright, thanks a lot bleakarcher.Voltage or potential difference is a measure of the amount of work required to move one coulomb of charge (a coulomb is the SI unit for charge) from one point in the circuit to another. So say the voltage (in the case of a galvanic cell) is 1.5 V, then it takes 1.5 J of energy to move 1 coulomb of charge between the electrodes.
Sorry for the late reply lol, was watching the federer match.And bleakarcher, may I ask, what is potential? I'm also struggling to understand it via google :/
Haha all good man and thanks once again. Need to start learning physics again some time soonSorry for the late reply lol, was watching the federer match.
Electric potential is a measure of electrostatic potential energy per coulomb of charge. All points within an electric field have a certain electric potential and the work required to move a point charge between this two points is the voltage between those two points in the electric field or the potential difference (this is where the term comes from).
Glad to help man.Haha all good man and thanks once again. Need to start learning physics again some time soon![]()
In the textbook they gave the approximate NIsn't it 1.5:1 for a large isotope and 1:1 for a small isotope?
Damnit I forgot all this chem >.<
There was a 1.3:1?In the textbook they gave the approximate Nratios for Z<20, Z=50 and Z=80 which correlate to 1:1, 1.3:1 and 1.5:1 respectively. So yeah you're right - good memory
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Maybe a light review wouldn't hurt.There was a 1.3:1?
I think I might need to refresh my chem before uni starts!![]()
Hey Aysce,Maybe a light review wouldn't hurt.
Anyways, can you confirm whether Peter's answer is correct? (It makes sense and I've searched up the answer but then again, I wanna know if it's defs legit lol)