Liquids and Intermolecular Forces Flashcards

Flashcards about Liquids and Intermolecular Forces

What determines the state of a substance?

The balance of particle kinetic energy and the energy of attraction.

What are intermolecular forces?

The attractions between molecules.

List examples of physical properties that reflect intermolecular forces.

Boiling points, melting points, viscosity, surface tension, and capillary action.

What are the three types of intermolecular forces between neutral molecules, from weakest to strongest?

Dispersion forces, dipole-dipole forces, and hydrogen bonding.

What is polarizability?

The tendency of an electron cloud to distort.

What happens to the boiling point of equally sized and shaped molecules as polarity increases?

it increases

What three elements must hydrogen be bonded to for hydrogen bonding to occur?

Nitrogen, oxygen, and fluorine.

What is viscosity?

Resistance of a liquid to flow.

What causes surface tension?

Extra inward forces on the surface of a liquid.

What is a phase diagram?

A graph showing states of matter under conditions of temperature and pressure.