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Why does rust decrease the strength of an iron bar?
The reason for this is because rust is weaker than iron and decreases strength. Iron rust flakes off and has holes in it that allow water and air to further corrode deeper layers of iron (like a pile of potato chips). Aluminium, stainless steel and other metals form a complete continuous layer and prevent further corrosion. It is not because of reduced surface area if anything the surface area is increased (especially with iron)AnswerI believe its because the overall surface area of the bar is decreased, hence the structural integrity of the bar is compromised. Strangely enough, when aluminum rusts the aluminum oxide on the surface of the metal increases resistance to further corrosion without reducing the surface area. love Tim xxx
Is iron is a pure substance or mixture?
Iron is a pure substance. It's an element (Fe) and a bar of Iron is no mixture. If it was pure iron, then by definition it would be pure. However iron is rarely pure, it is usually in alloy with something.
How can you tell the difference between a bar of iron a bar of copper and a magnet?
You can differentiate between a bar of iron and a bar of copper by testing their magnetic properties - iron is attracted to magnets, while copper is not. A bar magnet will attract small iron objects, while a bar of copper will not be attracted.
If a 150 gram iron bar is heated to 250c a second iron bar with a mass or 300 grams is heated to 250c which bar has the most thermal energy?
The second iron bar with a mass of 300 grams has the most thermal energy because thermal energy is proportional to both mass and temperature. The greater mass of the second iron bar means it will have more thermal energy compared to the first iron bar with a mass of 150 grams, even if they are both at the same temperature of 250°C.
How many kg is iron bar?
The weight of an iron bar can vary depending on its dimensions and density. However, a common estimate for a standard iron bar is around 7.85 kg per meter in length for a bar with a diameter of 25 mm.
Iron bar rust how is the balance?
Rust is formed from Fe2O3.nH2O and Fe(OH)3.
What type of material rust?
metal,iron, nails ,bar, steel,rod
Why does rust decrease the strength of an iron bar?
The reason for this is because rust is weaker than iron and decreases strength. Iron rust flakes off and has holes in it that allow water and air to further corrode deeper layers of iron (like a pile of potato chips). Aluminium, stainless steel and other metals form a complete continuous layer and prevent further corrosion. It is not because of reduced surface area if anything the surface area is increased (especially with iron)AnswerI believe its because the overall surface area of the bar is decreased, hence the structural integrity of the bar is compromised. Strangely enough, when aluminum rusts the aluminum oxide on the surface of the metal increases resistance to further corrosion without reducing the surface area. love Tim xxx
If an iron bar were inserted into the wire coil what would happen to the iron bar?
The iron bar would become magnetized by induction through the wire coil. It would temporarily gain magnetic properties while in contact with the coil, but would lose them once removed.
What happens to the molecules when a steel bar is left outside and starts rusting?
The molecules of iron combine with molecules of oxygen to form molecules of iron oxide- or rust.
If an iron bar is inserted into a wire coil what would happen to the iron bar?
The iron bar would become magnetized when inserted into a wire coil carrying an electric current. This is because the electric current induces a magnetic field in the coil, which in turn magnetizes the iron bar.
What will happen when combining of iron with oxygen and moisture?
When iron combines with oxygen and moisture, it will undergo a chemical reaction called oxidation. This process will lead to the formation of iron oxide, commonly known as rust. Rust weakens the iron, causing it to corrode and deteriorate over time.
Is iron is a pure substance or mixture?
Iron is a pure substance. It's an element (Fe) and a bar of Iron is no mixture. If it was pure iron, then by definition it would be pure. However iron is rarely pure, it is usually in alloy with something.
What would be a good way to displaythe results of the ''what causes metals to rust faster''?
Bar graph
How piece of iron bar of 12mm make one metric tone?
To calculate the weight of an iron bar, you need to know its length. Assuming a standard density of iron, the weight of a 12mm iron bar to be one metric ton would require a length of approximately 82.5 meters. This calculation is based on the volume of the iron bar and its density.
What is iron rust?
Rust is a general term for iron oxides formed by the reaction of iron with oxygen. Several forms of rust are distinguishable visually and by spectroscopy, and form under different circumstances. The chemical composition of rust is typically hydrated iron(III) oxide (Fe2O3.nH2O), and under wet conditions may include iron(III) oxide-hydroxide (FeO(OH)). Rusting is the common term for corrosion of iron and its alloys, such as steel. Although oxidation of other metals is equivalent, these oxides are not commonly called rust. As rust has higher volume than the originating mass of iron, its buildup may force apart adjacent parts - a phenomenon known as rust smacking. The rusting of iron is one of the more widely used examples of corrosion. This electrochemical process requires the presence of water, oxygen and an electrolyte and leads to the formation of hydrated iron oxides.
Is an iron bar a conductor or an insulator?
A iron bar is a conductor
