(Q1) Solid to Gas; Temperature Scales; Gases; Gas Laws (pg 14-22) Flashcards
Sublimation
Change in state directly from the solid state to the gaseous state
Freezing Point of Water
32 F, 0 C, 273 K
Boiling Point of Water
212 F, 100 C, 373 K
What is the formula to convert Celsius to Kelvin?
K=C+273
What are the three important properties of gases?
Compressibility
Expansivity
Diffusibility
Compressibility
A gas can be compressed, which means the volume can be decreased resulting in an increase in pressure
- Example: filling up a low tire
Expansivity
A gas will expand when heated, resulting in an increase in pressure
Example: hot air balloon
Diffusubility
A gas will diffuse evenly when introduced into a container
- example: air fresheners
Volume of a Gas
the volume of a gas is equal to the volume of the container
What do gases not possess?
a fixed shape or volume, but rather occupying the entire space of their container
What is pressure?
A force per unit of area
How is pressure measured?
Pounds per square inch (PSI)
What is Boyle’s Law
- Gas Law
- The volume occupied by a gas is inversely proportional to the pressure if the temperature remains constant
How is Boyle’s Law Expressed Mathematically?
P1V1=P2V2
What is Charles’ Law?
- Gas Law
- The volume of a gas is directly proportional to its temperature if the pressure remains constant