Question #bbed8
1 Answer
It has nothing to do with ions or anything like.
Where J is current density
I is the charge in the total area
This means more the current density more the current
As a simple example, assume the current density is uniform (equal density) across the cross section of a wire with area
Calculate area from radius
Increasing the current
zappppp!!!!!!!
Now assume the current density is uniform (equal density) across the cross section of a wire with area
So increasing the current density means that you are actually increasing the current if you assume that the area of the conductor is remaining the same
In electrolysis if you apply more energy obviously the electrolysis would be faster. This is for every device that uses energy including us. More energy more work.Electrolysis is actually a reaction which cannot start on its own.But it can be considered as a reaction.
Like in reactions in electrolysis too bonds are broken are formed into new chemical bonds. But to break a bond you need to apply some energy and this amount of energy or the energy to break a bond is known as bond dissociation energies. This energy comes from the electrical source. So more energy the faster the process
Now let me show you an example
Suppose that
The reaction
=
Net ionic reaction
Each mole of
Thus
The whole reaction
As 2C/s is applied for 2s
Use the Faraday's constant to calculate the moles of electrons lost and gained in total.
1 mole of
Thus moles of
Now see what happens if we apply more charge
Consider the charge as 3C/s for 2s
Do the same calculations
As 3C/s is applied for 2s
=
Thus more the current,voltage and coulomb the more the mole of copper formed thus more the mass of copper formed
mole to grams
Plotting a graph
If my handwriting is too bad
y = mol of Cu formed from reduction of
x = mol of electrons used in the process