Changes of state and the particle model key terms

Particle Arrangement

The specific way in which particles are organized in solids, liquids, and gases, affecting their properties.

Particle Movement

The motion of particles in solids, liquids, and gases, which varies based on the state of matter and influences temperature and energy.

melting

The process where a solid turns into a liquid due to increased particle energy and changes in particle arrangement.

particle arrangement

The specific way in which particles are organized in solids, liquids, and gases, affecting their properties and behavior.

freezing

The process where a liquid loses energy, causing particles to arrange closely and form a solid.

particle arrangement

The specific organization of particles in solids, liquids, and gases that determines their physical properties.

boiling

The process where a liquid changes to gas when particles gain enough energy to overcome intermolecular forces.

particle energy

The energy possessed by particles that affects their movement and arrangement in different states of matter.

evaporation

The process by which particles escape from the surface of a liquid, transitioning into the gas phase.

liquid

A state of matter characterized by a definite volume but no fixed shape, allowing it to flow and take the shape of its container.

Condensing

The process where gas particles lose energy, resulting in a closer arrangement and transition to a liquid state.

Particle arrangement

The specific organization of particles in a substance, which varies between solids, liquids, and gases.

Sublimation

The process in which a solid changes directly into a gas without passing through the liquid state.

Particle Arrangement

The specific organization of particles in a solid, liquid, or gas, which influences the state and properties of the material.

Boiling

The process where a liquid changes to gas throughout the liquid when it reaches its boiling point.

Evaporation

The process where particles escape from the surface of a liquid to become gas at any temperature.

physical change

A change that affects one or more physical properties of a substance without altering its chemical composition.

state change

The transformation of a substance from one state of matter (solid, liquid, gas) to another, such as melting or boiling.

mass conservation

The principle that the total mass of a closed system remains constant over time, regardless of the processes acting inside the system.

change of state

The transformation of a substance from one state of matter (solid, liquid, gas) to another, which involves energy transfer but does not change the substance's mass.

change of state

The transformation of a substance from one physical state to another, such as solid to liquid or liquid to gas.

reversible change

A change that can be reversed, allowing the material to return to its original properties.

Particle Model

A model that describes the arrangement and movement of particles in solids, liquids, and gases.

Fixed Shape

The characteristic of solids where particles are closely packed in a fixed arrangement, preventing flow.

Particle Model

A model that describes the arrangement and movement of particles in solids, liquids, and gases.

Density

The mass of a substance per unit volume, typically measured in kilograms per cubic meter (kg/m³) or grams per cubic centimeter (g/cm³).

particle model

A theoretical framework that describes the arrangement and behavior of particles in solids, liquids, and gases.

limitations of particle model

The constraints of simple particle model diagrams in accurately depicting real particles, their interactions, and motion.