Chapter 13 - Kinetic Theory Flashcards
What are the characteristics are used to describe states of matter?
Flow, Shape, Volume, density
What is true about particles in a solid?
They are held next to each other in fixed positions
What is the least energetic state of matter?
Solids
What is true about particles in a liquid?
They move at random and are in contact with each other
What is true about particles in a gas?
They move at random and are much further apart than a solid or liquid
What is the most energetic state of matter?
Gas
How can you change state of matter from a solid?
Melt to a liquid
Sublimation to a gas
How can you change state of matter from a liquid?
Freeze to a solid
Vaporise to a gas
How can you change state of matter from a gas?
condensation to solid or liquid
What is the specific heat capacity of a substance?
The amount of energy needed to change the temp of 1kg of the substance by 1°C
What happens when the mass of an object becomes greater in terms of heating?
The higher the mass, the more slowly it heats up
What does the temperature rise of a substance depend on?
The mass of the substance
The type of substance
The amount of energy applied to the substance
What do you need to melt a solid or boil a liquid?
Energy
When does boiling occur in a liquid and how much of the substance boils?
When the substance is at its boiling point. It boils throughout the substance
When does evaporation occur in a liquid and how much of the substance evaporates?
When a substance is below the boiling point. It occurs on the surface of the liquid
