Basic Chemistry Problem

Question

Identify if the following conditions/materials have increased or decreased intermolecular forces.

1. Vegetable oils can flow easily compared with honey
2. Liquid helium has the lowest boiling point at 4.2 º C
3. When liquid mercury is spilled in can easily form balls/droplets compared with water.
4. Permethrin an insecticide has a very low vapor pressure compared with water.
5. Heat of vaporization of ethanol is 42 KJ/mol while water is at 41 KJ/ mol.

Answer 1

1. Vegetable oils can flow easily compared with honey - decreased
2.  Liquid helium has the lowest boiling point at 4.2 º C - decreased
3. When liquid mercury is spilled in can easily form balls/droplets compared with water. - increased
4. Permethrin an insecticide has a very low vapor pressure compared with water. - increased
5. Heat of vaporization of ethanol is 42 KJ/mol while water is at 41 KJ/ mol. - increased