Unit 6 Review 🧴 🧫 🥶

What is Kinetic Molecular Theory?

Behavior of matter based on particle motion

According to KMT what are particles constantly doing?

Moving in random motion

What does temperature measure according to KMT?

Average kinetic energy of particles

What happens to particle speed when temperature increases

Particle speed increases

What happens to kinetic energy when temperature increases?

Kinetic Energy increases

What type of collisions occur between gas particles

Elastic collisions (no energy is lost)

Solid to liquid

melting

Liquid to solid

freezing

Liquid to gas

Vaporization (boiling)

Gas to liquid

Condensation

Solid to gas

sublimation

Gas to solid

Deposition

What is a solution

Homogenous mixture

What is a solute

Substance being dissolved

What is a solvent

Substance doing the dissolving

What is solubility?

The maximum amount of solute that can dissolve in a solvent

What is an unsaturated solution

A solution that can dissolve more solute

What is a saturated solution?

A solution containing the max amount of dissolved solute

What is a supersaturated solution

Has more dissolved solute than normally possible

How does increasing temperature affect the solubility of most solids?

Solubility increases

How does increasing temperature affect the solubility of gases?

Solubility decreases

Why does warm soda go flat faster?

gases are less soluble at higher temperatures

What is molarity?

M = moles/ liters

What is molality

m = moles/ kilograms

What is diffusion?

movement of particles from high concentration to low concentrtion

Example of diffusion

perfume spreading through a room

What direction does diffusion always occur

High concentration to low concentration

What is effusion?

movement of gas particles through a tiny opening

What effuses faster?

smaller/lower molar mass

What is the boiling point

0.52

What is freezing point

-0.86

What is a phase diagram?

A graph showing the state of matter at different temperatures and pressures

What is the triple point?

The temperature and pressure were solid, liquid, and gas all exist simultaneously