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Why would a metal corrode more quickly in a salt water than distilled water?

In a medium of lower pH (acidic), the rate of corrosion is high. If the pH of medium is below 3 (approximately), even in absence of air severe corrosion takes place due to rapid evolution of hydrogen at cathodic areas, facilitating anodic oxidation of the metal and dissociation of corrosion product, exposing fresh metal surface for corrosion. In distilled water (pH about 7), rate of corrosion is relatively lower.


How is electronegativity related to corrosion?

Electronegativity is related to corrosion through the formation of galvanic cells. When two different metals with different electronegativities are in contact in an electrolyte solution, one metal becomes the anode and corrodes while the other becomes the cathode and is protected from corrosion. The difference in electronegativity between the metals determines the rate of corrosion in the galvanic cell.


What is the metal that burns more vigorously in air than iron?

Berylium because it has a higher reactivity rate.


What can you determine from reacting a metal with acid?

Reacting a metal with acid can help determine the reactivity of the metal. The metal will react with the acid to form a salt and hydrogen gas. The rate and intensity of the reaction can provide information about the metal's position in the reactivity series.


What is the effect of temperature on the corrosion of aluminum?

Temperature can accelerate the rate of corrosion of aluminum by increasing the reaction kinetics between the metal and the surrounding environment. Higher temperatures can also lead to the formation of more aggressive corrosion products, such as aluminum oxide, which can further accelerate the corrosion process. It is important to control the temperature to prevent excessive corrosion of aluminum materials.

Related Questions

Where in the reactivity series are the metals most affected by corrosion?

The rate of corrosion is directly linked to a metal's reactivity. The higher the metal in the series, the more reactive, also more susceptible to corrosion with oxygen and water. aluminum is not easy to corrode. Aluminum quickly reacts with oxygen in the air, and the oxide layer that forms protects the metal underneath from any further reaction.


What makes the corrosion rate higher in industrial areas than in urban areas?

Taking a look at the industrial areas,the corrosion rate seems to be higher since the industrial area can be said to be a combination of both an urban centre and a rural centre and invariably has a corrosion rate= corrosion rate of urban + corrosion rate of rural areas


Why does corrosion rate of no value on localized corrosion?

in my opinion, the value of corrosion rate obtained from certain reading is generally determine general corrosion rate, regardless what type of corrosion occur on a specific surface. in localized corrosion, where only some spots on surface is exposed to corrosion and other may be covered by film and etc. From my time of study, still didn't fine any research that can determine corrosion rate of localized corrosion unless u have a really micro- instrumentation that can monitor corrosion on the localized spots.. Izzudin saujana2@gmail.com


Why would you want to control the rate of corrosion?

You would want to control the rate of corrosion for an object in order to extend the life of that object and/or to be able to observe the corrosion in a controlled situation.


The mathematical link between a bond's price and interest rate change is the?

Modified Duration


At what temperature does corrosion start?

rate of corossion is directly proportional to temperature


What are two other factors that affect the rate of the reaction?

The properties of reactants (reactivity) and catalytic behaviour


Why would a metal corrode more quickly in a salt water than distilled water?

In a medium of lower pH (acidic), the rate of corrosion is high. If the pH of medium is below 3 (approximately), even in absence of air severe corrosion takes place due to rapid evolution of hydrogen at cathodic areas, facilitating anodic oxidation of the metal and dissociation of corrosion product, exposing fresh metal surface for corrosion. In distilled water (pH about 7), rate of corrosion is relatively lower.


How is electronegativity related to corrosion?

Electronegativity is related to corrosion through the formation of galvanic cells. When two different metals with different electronegativities are in contact in an electrolyte solution, one metal becomes the anode and corrodes while the other becomes the cathode and is protected from corrosion. The difference in electronegativity between the metals determines the rate of corrosion in the galvanic cell.


Polarization is a measure of?

Polarization curve is measuring the corrosion rate of the metal with respect to current and voltage.


What is the metal that burns more vigorously in air than iron?

Berylium because it has a higher reactivity rate.


Where is steel used in Rusting out how acids affect the rate of corrosion?

Steel is commonly used in construction, pipelines, vehicles, and machinery. Acids can accelerate the corrosion of steel by increasing the rate of oxidation of the metal. This occurs through a process called electrochemical corrosion, where the acid serves as an electrolyte that facilitates the flow of electrons and speeds up the rusting of the steel.