GenChem 2 L1: Kinetic Molecular Theory Of Matter Flashcards
What are the 4 Proponents of the Kinetic Molecular Theory of Matter?
- Matter is composed of small particles.
- Molecules interact through attractive forces.
- Molecules are in constant random motion.
- Temperature is a measure of the average kinetic energy.
building blocks of matter.
Atoms
group of individual atoms or group of atoms bonded together.
Molecules
attractive forces between molecules
Intermolecular forces
By the rule of Intermolecular Forces, objects at a:
smaller / shorter distance =
bigger / further distance =
smaller / shorter distance = stronger interaction
bigger / further distance = weaker interaction
Identify the strength of the intermolecular forces of each state of matter below:
● Solids
● Liquids
● Gasses
● Solids: closer particles (compact structure) = strong intermolecular forces.
● Liquids: father particles = intermediate intermolecular forces.
● Gasses: move at long distances = weak intermolecular forces.
Identify the motion of each state of matter below:
● Solids
● Liquids
● Gasses
● Solids: strong intermolecular forces = restricted motion.
● Liquids: intermediate intermolecular forces = move past each other.
● Gasses: weak intermolecular forces = move in long distances before colliding.
energy of particles in motion.
Kinetic energy
averge kinetic energy of molecules.
Temperature
Describe the 3 states of matter.
● Solids: fixed shape and volume, vertically incomprehensible
● Liquids: shape of container, fixed volume, slightly compressible.
● Gasses: shape and volume of containe, very compresible.
A phase change that affects the state of matter that goes from solid to liquid.
Melting
A phase change that affects the state of matter that goes from liquid to gas.
vaporization
“the state of a matter is determined by two factors: ______ and _____.”
“the state of a matter is determined by two factors: temperature and strength of intermolecular forces.”
“At _____ temperatures, intermolecular forces determine the state of a substance.”
At lower temperatures, intermolecular forces determine the state of a substance.
