kinetic molecular models of liquids and solids

If the ice is heated, the energy of the molecules increases. The molecules are held closely together in a regular pattern called a lattice. We find that in its solid phase (ice), the water molecules have very little energy and cannot move away from each other. Interactive: Intermolecular Attractions and States of MatterĮxplore how states of matter are related to the strength of intermolecular attractions. These attractive forces are called intermolecular forces.

There are attractive forces between atoms/molecules, and these become stronger as the particles move closer together.A change in phase may occur when the energy of the particles is changed.The temperature of a substance is a measure of the average kinetic energy of the particles.Molecules in the solid phase have the least amount of energy, while gas particles have the greatest amount of energy. This in turn determines whether the substance exists in the solid, liquid, or gaseous state. All particles have energy, but the energy varies depending on the temperature the sample of matter is in.Matter is made up of particles that are constantly moving.The kinetic molecular theory of matter states that: Notice that the spacing between atoms or molecules increases as we move from a description of the solid phase to the gaseous one. Matter can exist in the solid, liquid, and gaseous phases. Theory of treating samples of matter as a large number of small particles (atoms or molecules), all of which are in constant, random motionĪ regular spacing or arrangement of atoms/molecules within a crystal.Ī component in a material system that is distinguished by chemical composition and/or physical state.

The average amount of empty space between molecules gets progressively larger as a sample of matter moves from the solid to the liquid and gas phases.

There are spaces between particles of matter.

A change in phase may occur when the energy of the particles is changed. Solid particles have the least amount of energy, and gas particles have the greatest amount of energy.

All particles have energy, and the energy varies depending on the temperature the sample of matter is in, which determines if the substance is a solid, liquid, or gas.

Kinetic molecular models of liquids and solids