Carbon atoms are used to make nanotubes - AQA - GCSE Chemistry - Question 5 - 2014 - Paper 1
Question 5
Carbon atoms are used to make nanotubes.
Carbon atoms in a nanotube are bonded like a single layer of graphite.
Figure 5 shows the structure of a single layer of g... show full transcript
Worked Solution & Example Answer:Carbon atoms are used to make nanotubes - AQA - GCSE Chemistry - Question 5 - 2014 - Paper 1
Step 1
Suggest why carbon nanotubes are used as lubricants.
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Answer
Carbon nanotubes are utilized as lubricants because they can slide over each other easily. This property stems from the absence of strong covalent bonds between the nanotubes, allowing them to roll over one another, which minimizes friction between surfaces.
Step 2
Explain why graphite can conduct electricity.
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Answer
Graphite can conduct electricity due to the presence of delocalised electrons. These delocalised electrons are free to move through the structure of graphite, allowing them to carry electric charge efficiently.
