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Which component, the anode or cathode, is more prone to corrosion in a galvanic cell?
The anode is more prone to corrosion in a galvanic cell.
What is cathodic reaction?
Taken from Introduction To Corrosion Science by E. McCafferty Two notable things occur during a cathodic reaction. 1.) A given species undergoes reduction (there is a decrease in its oxidation number) 2.) A gain of electrons at the cathodic site (electrons are consumed by the reaction) An example of a cathodic reaction is: 2H+(aq) + 2e- ==> H2(g) This reaction however is just a half-cell reaction, which means it is usually coupled (happens along with) an anodic reaction.
What is the reaction in a fuel cell spontaneous and non spontaneous?
Spontaneous ...Happens all by itself; typically unpredictableNon-spontaneous...You have to do something to make it happen.
What must be the sign of the standard cell potential (cell) for a redox reaction to be spontaneous?
For a redox reaction to be spontaneous, the standard cell potential (cell) must be positive.
Is metaplasia reversible?
Yes, metaplasia is often reversible if the underlying cause is identified and corrected. If the stimulus causing the change in cell type is removed, the affected tissue may revert back to its original state. However, if the stimulus persists over a prolonged period, metaplasia can progress to a more permanent cell type change.
Distinguish between reversible and irreversible electrochemical cell?
irreversible cells are those which require replacement of chemicals.when they give out electricity. these cannot be recharged. examples are : 1 =dry cell 2=zinc acid copper cell reversible cells are those in which reversible reactions are involved.these cells can brought back to their initial state by applying external potential difference
How does a battery gets its power inside the battery?
Basically one metal plate corrodes and this corrosionprocess creates a voltage difference across the cell, which pushes an electric current through the external circuit.In primary batteries the corrosion is irreversible and the battery dies when discharged, in secondary batteries the corrosion is reversible allowing the battery to be recharged.
What is the difference between reversible and irreversible ischemia?
Reversible ischemia occurs when blood flow is temporarily restricted to an area, but the tissue is not permanently damaged and can recover if blood flow is restored quickly. Irreversible ischemia, on the other hand, results in permanent tissue damage due to prolonged lack of blood supply, leading to cell death and potentially organ dysfunction.
What is primary and secodary cell in term of physics?
a primary cell is an electric cell that produces current by an irreversible chemical reaction
What is galvanic cell?
A galvanic cell is an electric cell that generates an electromotive force by an irreversible conversion of chemical to electrical energy.
distinguish between primary and secondary cells?
A primary cell cannot be recharged whereas a secondary cell can be recharged. In a primary cell chemical reaction is irreversible whereas in a secondary cell chemical reaction is reversible. ... A primary cell is light and less expensive whereas a secondary cell is heavy and expensive.
Is hydropic degeneration reversible?
Hydropic degeneration is reversible if the underlying cause is identified and treated promptly. This condition is characterized by cellular swelling due to water accumulation, and resolving the trigger can help cells return to normal function. However, if left untreated, hydropic degeneration can progress to irreversible cell damage.
What is concave plasmolysis?
Concave plasmolysis occurs when a plant cell loses water and the plasma membrane pulls away from the cell wall, forming a concave shape. This typically happens when a plant cell is exposed to a hypertonic solution, causing the cell to shrink and the membrane to detach from the cell wall.
What is a chemical reaction in which the products reform the original reactant?
Enzyme catalyzed reactions are the chemical reactions that occur in series where the product of one reaction serves as the reactant in the next reaction. These reaction pathways allow a cell to grow and reproduce.
What is no reversible ischemia?
Irreversible ischemia refers to tissue damage that occurs when blood flow is completely blocked for an extended period, leading to cell death. This can result in permanent tissue damage or organ dysfunction. Common causes include heart attacks and strokes.
Which component, the anode or cathode, is more prone to corrosion in a galvanic cell?
The anode is more prone to corrosion in a galvanic cell.
Is a common dry cell known as a primary cells?
Yes common dry cell is a primary cell. No reversible reaction and hence no chance of charging. So use and throw type. But secondary cells could be put for charging and we can use it again and again after charging.
