General Knowledge - General Science - Discussion
Discussion Forum : General Science - Elements and Metals (Q.No. 15)
15.
Which of the following is used as a lubricant?
Discussion:
63 comments Page 6 of 7.
SUPRIT KUMAR RATH said:
8 years ago
Yeah,
According to me, Graphite has very smooth surface. It has one free (delocalysed) electron. Moreover, the carbon atoms present makes it's slippery.
So, It is used as a solid lubricant.
According to me, Graphite has very smooth surface. It has one free (delocalysed) electron. Moreover, the carbon atoms present makes it's slippery.
So, It is used as a solid lubricant.
Sakshi said:
8 years ago
Thanks.
Aditya patel said:
8 years ago
It is also used as a lubricant in nuclear reactors.
Uttam said:
7 years ago
Graphite is already working as a solid lubricant.
Same as Grease is semi-solid lubricants.
Same as Grease is semi-solid lubricants.
Himanshu said:
7 years ago
The layers slide over each other easily because there are only weak forces between them, making graphite slippery. Graphite contains delocalised electrons (free electrons). These electrons can move through the graphite, carrying charge from place to place and allowing graphite to conduct electricity.
Bikash biku said:
7 years ago
Because graphite is very soft. So graphite is used lubricant.
Rohit Gavhane said:
7 years ago
The graphite is very soft & so graphite is used by lubricant.
Rohit Gavhane said:
7 years ago
Is a necessary component for graphite lubrication. The adsorption of water reduces the bonding energy between the hexagonal planes of the graphite to a lower level than the adhesion energy between a substrate and the graphite. Because water vapour is a requirement for lubrication, graphite is not effective in a vacuum. Because it is electrically conductive, graphite can promote galvanic corrosion.
(2)
B Debnath said:
7 years ago
Graphite use as control rod or lubricant in a nuclear reactor?
(1)
Aadil said:
7 years ago
Graphite contains layers of carbon atoms. The layers slide over each other easily because there are only weak forces between them, making graphite slippery. Graphite contains delocalised electrons (free electrons).
(4)
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