States of Matter Flashcards
What are the three states of matter?
Solid
Liquid
Gas
How is a particle in a particle model represented?
Solid sphere
What do the properties of each state of matter depend on?
The forces between the particles
Solid properties.
String forces of attraction between each particle which hold them in fixed positions in a regular lattice arrangement.
The particles don’t move from their positions.
They keep a definite shape and volume.
The particles in a solid dong have much energy.
The particles can only vibrate in their fixed positions.
The hotter the solid become the more they vibrate.
Liquid properties.
There is some force of attraction between the particles.
The particles are free to move but they tend to stick together.
Liquids don’t keep a definite shape but they do keep the same volume.
The particles have more energy than a solid but less than a gas.
The particles are constantly moving with random motion.
The hotter the liquid gets, the faster they move.
Gas properties.
There is barely any force of attraction between the particles, they’re free to move.
The particles travel in straight lines and only interact when they collide.
Gases don’t keep a definite shape or volume and will always fill any container.
Gas state particles have more energy than in a solid or liquid state.
The particles move constantly with random motion. The hotter the gas gets the quicker they move.
What can adding and subtracting energy from a substance do?
Covert it from one physical state to another
What is it called when a substance changes from one state of matter to another?
Physical changes
What are chemical changes?
When bonds break between the atoms and the atoms change places. The atoms from the substances you start off with (the reactants) are rearranged to form different substances (the products)
How can you create a physical change?
Heating or cooling
