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Which can be used as a lubricant - graphite or diamond?
graphite
Why is graphite a good lubricant and diamond is an excellent abrasive?
Because graphite forms layers and each layer, each carbon molecule is bonded to three other carbon molecules. The fourth electron to each atom is weakly bonded to the layer next to it. The structure allows the layers to slide past each other, making this element an excellent lubricant.
What forms of carbon are the the best lubricant?
Graphite and diamond are two forms of carbon that can act as good lubricants. Graphite is commonly used as a dry lubricant due to its layered structure, which allows for easy sliding between the layers. Diamond can also be used as a lubricant at high pressures and temperatures due to its hardness and low friction properties.
What do diamonds and pencil lead have in common?
Graphite is in pencils, and Graphite is made up of Carbon Atoms, the same as Diamond, the only difference is its structure, Diamond has 4 covalent Carbon Bonds, whereas, graphite as 3, and a spare delocalised electron, meaning, graphite forms layers and can be used as a lubricant.
What are the key differences between the properties of diamond and graphite?
Diamond and graphite are both forms of carbon, but they have different properties. Diamond is a hard, transparent crystal with a high melting point, while graphite is a soft, opaque material with a lower melting point. Diamond has a three-dimensional structure, making it hard and durable, while graphite has a layered structure, allowing it to be used as a lubricant.
Differnce between diamond and graphite?
diamonds form a 3 dimensional latice. they also have have four bonds per atom. This makes a very strong material. graphite forms a 2 dimensional latice. it has 3 bonds per atoms (the fourth bond is added to the other three making partial double bonds). it forms sheets. it has excellent 2-d strength: it is what is used in carbon fibers. it also is an excellent lubricant because the sheets slide on one another. fullerenes are like graphite, but the small sheets are wrapped up into small balls or tubes. this gives them 3 d strength on a nano scale. But they lack large scale 3d properties
Is turning graphite into diamond exothermic?
Diamonds are formed from carbon, and so is graphite. The only time graphite is 'converted' to diamond is when a meteorite strikes earth. This can produce flakes of industrial diamonds that can be used by manufacturers to enhance tool usefulness, precision, and abrasive power.
What is the graphite?
a form of the element carbon (just like diamond is pure carbon). Graphite is used (with clays) in the lead of pencils, as a lubricant, for crucibles (vessels to hold high temperature molten metals), and a host of other things..
What are diamond graphite and buckyball examples of?
Diamond, graphite, and buckyballs are all examples of allotropes of carbon. Allotropes are different forms of the same element that have distinct properties due to their unique atomic arrangements. Diamond is a hard, transparent crystal, graphite is a soft, black material used as a lubricant and in pencils, and buckyballs (fullerenes) are hollow carbon molecules with potential applications in nanotechnology.
The chemical composition of graphite and diamond is?
Graphite and Diamonds are both allotropes of Carbon.
What are a diamond's properties?
Diamond is the hardest, strongest and the most abrasive resistant thing found on the earth . it is used in jewelry and also cutting hard objects especially carbides and also the graphite is the smoothest substance found on earth.
Do both diamond and graphite have a crystal structure?
Yes. Diamond is isometric, graphite is hexagonal.
