Unit 6-9

Saturated Solution

• a solution that contains the maximum amount of solute that can dissolve at a given temperature

• a solution that contains no solute at all

• a solution that can dissolve more solute at higher temperatures

• a solution that has an equal amount of solute and solvent

Temperature

• a measure of the average kinetic energy

• a measure of the total energy

• a measure of the heat content

• a measure of the pressure exerted by particles

Ideal Gas

• A gas that follows all parts of the kinetic molecular theory

• A gas that has a definite shape and volume

• A gas that can be easily compressed and expanded

• A gas that does not obey the laws of thermodynamics

Gas to Solid

• Exothermic

• Endothermic

• Sublimation

• Condensation

Chemical Change

• A change in the physical properties

• A new substance is formed

• No change occurs

• The substance remains the same

Postulate 3

• Gas molecules are spread so far apart that the volume of each individual particle is negligible

• Gas molecules are tightly packed and have a significant volume

• Gas molecules are in constant motion and collide frequently

• Gas molecules have a fixed volume and shape

Distillation

• Separation of 2 liquids based on the differences in boiling point

• A method to mix two liquids thoroughly

• A process to freeze liquids into solids

• A technique to evaporate liquids completely

Liquid to Solid

• Exothermic

• Endothermic

• Isothermal

• Sublimation

Heat of Vaporization

• Amount of heat required to boil 1 g of a substance at its boiling point

• Amount of heat required to freeze 1 g of a substance at its freezing point

• Amount of heat required to raise the temperature of 1 g of a substance by 1°C

• Amount of heat required to condense 1 g of a substance at its boiling point

q = mH_v

• Formula for calculating kinetic energy

• Formula used for heat problems involving a liquid-gas phase change

• Formula for calculating potential energy

• Formula for the conservation of momentum