Changes Of State Flashcards
What is the melting point?
A specific temperature in which most pure substances melt at.
What is melting?
The change in state from a solid to a liquid.
What is the melting point of water?
0 degrees Celsius.
What is freezing?
The change of state from liquid to a solid.
What is water’s freezing point?
0 degrees Celsius.
What happens to the particles of a liquid as they lose more and more energy?
Over time the water turns into solid ice.
What is vaporization?
The change from liquid to a gas.
What is evaporation?
Vaporization that only takes place on the surface of a liquid.
What is a boiling point?
The temperature at which a liquid boils.
What does the boiling point of a substance depend on?
The pressure of the air above it.
What is condensation?
When particles in a gas lose enough thermal energy to become a liquid.
Can you see water vapor?
No.
When does sublimation occur?
When the surface particles of a solid gain enough energy to form a gas.
During sublimation, do the particles of a solid pass through the state of liquid?
No.
What units are used to measure pressure?
Force divided by area.
