PARTICULATE NATURE OF MATTER Flashcards
Arrangement of Solids
Solid - regular arrangement, particles close together
Arrangement of Liquids
Liquid - random arrangement, particles close together
Arrangement of Gases.
Gas - random arrangement, particles spread out
Do particles in a Solid move?
No, they vibrate
Do particles in a Gas and Liquid move? How?
Yes, Liquid particles slide in and out of one another while gas particles are spread out so much that they don’t touch, they bump into one another
Name the process of the physical change when a material changes from a solid to a gas.
Sublimation
Name the process of the physical change when a material changes from a gas to a liquid.
condensation
Name the process of the physical change when a material changes from a gas to a solid.
Deposition
The process of melting changes the state of a material from
_______ to ________.
solid to liquid
The process of evaporation or boiling changes the state of a material from
_______ to ________.
liquid to gas
The amount of energy needed to change states depends on…
The forces between the particles of the substance (material)
What is the difference between evaporation and boiling?
Difference 1: Evaporation can happen at any temperature while boiling only happens at a certain temperature
Difference 2: Boiling creates bubbles from the bottom while evaporation happens at the surface
The nature of the particles of a substance depends on…
The state of matter and the arrangement of molecules inside the substance/material
If the forces between the particles and molecules are stronger what happens to the melting and boiling points?
Both the melting and boiling points increase
What happens to the melting and boiling points of a liquid when there is solute dissolved into the solvent?
melting point decreases while boiling point increases
