In a galvanic couple, the component that will corrode is the one which is most
Question
In a galvanic couple,
the component that will corrode is the one which is most
Solution
In a galvanic couple, the component that will corrode is the one which is most "anodic" or "active".
Here are the steps to understand this:
-
A galvanic couple is a pair of different metals or alloys having different electrode potentials. When these two metals are in contact and immersed in an electrolyte (like water), an electrochemical reaction can occur.
-
In this reaction, one metal (the anode) will start to corrode, while the other metal (the cathode) will be protected from corrosion. This is because the anode is more "active" or "anodic" than the cathode.
-
The anode is the metal that has a more negative electrode potential. This means it is more likely to lose electrons and corrode.
-
The cathode, on the other hand, has a more positive electrode potential. It is less likely to lose electrons and therefore less likely to corrode.
-
So, in a galvanic couple, the component that will corrode is the one which is most anodic or active. This is the basic principle behind galvanic corrosion.
Similar Questions
Dissimilar metals will corrode in the presence of _______.Group of answer choicescaustic chemicalsan electrical currentan electrolytewater
Compare and contrast galvanising and electroplating. Why might an engineering part beelectroplated rather than galvanised?
Which of the following metal corrodes the slowest ?A Silver B Iron C Copper D Gold
What metal is used to galvanize steel which protects it from oxidizing and gives it a unique texture/pattern as seen below?
The galvanised article protected against rusting even if the zinc coating is broken. Can you reason this out why
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.