Why less originated area act as anode in a metal ?

In summary, the smaller surface area acts as the anode in a metal due to its higher current density and concentration of charge. The surface area has an inverse relationship with the anode, as a smaller surface area results in a more active anode. The anode is often a smaller piece of metal to increase its activity and conserve resources. The size of the anode can greatly affect the overall performance of a metal, with a smaller anode leading to increased efficiency and a larger anode potentially causing issues such as corrosion.
  • #1
ajayguhan
153
1
Why less originated area act as anode in a metal ?
 
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  • #2
What do you mean by "originated area"?
 
  • #3
Sorry it's oxygenated
 
  • #4
I am still not sure what the question is really about. In what context was it asked?
 
  • #5
A metal undergoes a electrochemical corrosion when exposed to moisture air. The parts which are less exposed to oxygen will act as anode and the more oxygen concentrated area will act as cathode
 

1. Why does the smaller surface area act as the anode in a metal?

The smaller surface area acts as the anode in a metal because it has a higher current density. This is due to the fact that the same amount of charge is being spread out over a smaller surface area, leading to a higher concentration of charge and therefore a higher rate of electron transfer.

2. How does the surface area affect the anode in a metal?

The surface area plays a critical role in determining the anode in a metal. A smaller surface area means a higher current density, leading to a higher rate of electron transfer and therefore a more active anode. Conversely, a larger surface area results in a lower current density and a less active anode.

3. What is the relationship between surface area and anode in a metal?

The relationship between surface area and anode in a metal is inverse. As the surface area decreases, the anode becomes more active due to the higher current density. As the surface area increases, the anode becomes less active due to the lower current density.

4. Why is the anode in a metal often a smaller piece of metal?

The anode in a metal is often a smaller piece of metal because it has a smaller surface area. As discussed, a smaller surface area results in a higher current density, making the anode more active. Additionally, using a smaller piece of metal for the anode can also help to conserve resources and reduce costs.

5. How does the size of the anode affect the overall performance of a metal?

The size of the anode can greatly affect the overall performance of a metal. A smaller anode means a higher current density and more active anode, resulting in a more efficient and effective metal. On the other hand, a larger anode may result in a lower current density and less active anode, leading to decreased performance and potentially causing issues such as corrosion.

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