Qualitatively indicate how attractive intermolecular forces are related to: a) ΔHvap,m; b) boiling point; c) vapour pressure. Also, show an example, like mercury vs. water.

Q6. Consider this diagram in which ethyl acetate is contained in a container with a piston. If the system is maintained at 50°C describe what happens inside the cylinder when the piston is withdrawn. Be brief.