Graphite (GCSE Chemistry)

Why is graphite an effective lubricant in high-temperature applications?

Which process demonstrates the ability of graphite to intercalate small atoms or molecules between its layers?

A sample of graphite is heated strongly in air and slowly oxidises to carbon dioxide. What does this tell you about the bonding in graphite?

What causes the anisotropic (direction-dependent) properties of graphite, such as different electrical conductivity parallel and perpendicular to the layers?

A pencil lead made of graphite is used to write on paper. What property of graphite explains why the marks are left on the paper?

Which of the following best explains why graphite has lower density than diamond?

Graphite is used as a moderator (neutron absorber) in some nuclear reactors. Which property is most relevant to this use?

How does the presence of oxygen-containing groups on the surface of graphite (e.g., after oxidation) affect its behaviour in composite materials?

Why is graphite considered chemically stable in many environments but can still be oxidised at high temperatures in air?

Why is graphite used for electrodes in some high-temperature electrolysis processes?

How does the presence of delocalised electrons in graphite affect its chemical reactivity compared with diamond?