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Why do we use graphite as a lubricant?
Graphite is used as a lubricant due to its slippery nature. Graphite has layers of carbon atoms, with weak forces, residing in between its layers because of which it is quite slippery..
Why graphite is a better lubricant than oil?
The greatest benefit to using graphite (rather than oil) is that the graphite leaves no sticky residue that may later attract dust. This is because the lubricating properties of graphite lie in its weak covalent bonds that allow the layers of graphite to “slide” on top of one another with very little resistance.
Why is graphite used as a lubricant and diamond is not?
Because of its softness and non-volatile nature, graphite is used as a lubricant in the fast moving parts of a machinery. Diamond, on the other hand, is an extremely hard substance; therefore, it cannot be used as a lubricant.
Why is graphite used as a lubricant class 11?
Graphite has a layered structure and different layers of graphite are bonded to each other by weak Vander Waal’s forces. These can slide over each other. Graphite is soft and slippery. Therefore, graphite can be used as a lubricant.
Why is graphite used in pencils and lubricants?
The different layers of carbon atoms present in graphite are bounded by weak van der Waals forces. The cleaning between the layers is done by graphite, thus, it is so slippery and soft. This is the reason why graphite is used in pencil and as lubricants in machines which operate at high temperature.
Why graphite is non volatile?
non-volatile means a substance which does not immediately evaporate under the existing conditions. and graphite has a very strong covalent bond and hence it’s non-volatile.
Why graphite is used in pencil and in lubricants?
Why is graphite used in dry cell?
Graphite is used for making electrodes in dry cells because it has the property to conduct electricity without taking part in a chemical reaction.
Which type of lubricant is graphite?
Dry lubricants or solid lubricants are materials that, despite being in the solid phase, are able to reduce friction between two surfaces sliding against each other without the need for a liquid oil medium. The two main dry lubricants are graphite and molybdenum disulfide.