Question

what are the two factors that influence the formation of rust in the iron nails
​

Answer 1

As we know that the Rusting of iron refers to the formation of rust, a mixture of iron oxides, on the surface of iron objects or structures.

• As the rust is formed from a redox reaction between oxygen and iron in an environment containing water (such as air containing high levels of moisture).
• So, The rusting of iron is characterized by the formation of a layer of a red, flaky substance that easily crumbles into a powder.
• That's why This phenomenon is a great example of the corrosion of metals, where the surfaces of metals are degraded into more chemically stable oxides.
• whenever this term ‘rusting’ is generally used to refer to the corrosion of objects made of iron or iron alloys.
• Lots of Many factors speed up the rusting of iron, such as the moisture content in the environment and the pH of the surrounding area.

Following are the Factors that Affect the Rusting of Iron:

• Moisture: The corrosion of iron is limited to the availability of water in the environment. Exposure to rains is the most common reason for rusting.

• Acid: if the pH of the environment surrounding the metal is low, the rusting process is quickened. The rusting of iron speeds up when it is exposed to acid rains. Higher pH inhibits the corrosion of iron.

• Salt: Iron tends to rust faster in the sea, due to the presence of various salts. Saltwater contains many ions that speed up the rusting process via electrochemical reactions.

• Impurity: Pure iron tends to rust more slowly when compared to iron-containing a mixture of metals.

As we know the size of the iron object can also affect the speed of the rusting process. For example, a large iron object is likely to have small deficiencies as a result of the smelting process.

So, These deficiencies are a platform for attacks on the metal from the environment.

Answer 2

Answer:

Rusting of iron occurs when there is the formation of rust, a mixture of iron oxides, on the upper surface of iron objects or structures.

Factors that Affect the Rusting of Iron are:

1. Moisture: The moisture content in the environment and the pH of the surrounding area, can affect the iron objects. Rain can be the main cause of the rusting due to the moisture.

2. Acid: If the pH of the environment where the metal is kept is low, the rusting process can fasten up. Acid rains can speed up the process of rusting. Higher pH inhibits the corrosion of iron.