Kinetic Molecular Theory Flashcards
What are the 5 things you should mention when describing the properties of matter
Particles Energy and Movement of particles Spaces between particles Attractive forces between particles Effect of adding or removing energy
What is Brownian Motion
The phenomenon by which particles are in constant random motion
What is Diffusion
A physical process where a substance moves from an area of high concentration to an area of low concentration
Define Freezing
Process where a substance changes from liquid to solid
Define Melting
Process where a substance changes from a solid to a liquid
Define Condensation
Process where a substance changes from a gas to a liquid
Difference between evaporation and boiling
Boiling takes place anywhere in a liquid and requires a certain temperature at a certain pressure
Evaporation only takes place on the surface of a liquid and at any temperature and pressure
Define Sublimation
Process where a substance changes directly from a solid to a gas
Define Deposition
Process where a substance changes directly from a gas to a solid
Define Melting Point
Constant temperature at which a substance turns from a solid to a liquid
Define Freezing Point
Constant temperature at which a substance turns from a liquid to a solid
Define Boiling Point (Grade 10)
Constant temperature at which a substance changes from a liquid to a gas
Define Boiling Point (Grade 11)
Temperature at which the vapour pressure is equal to the atmospheric pressure
Define Temperature
Measure of the average kinetic energy of the particles of a substance
Define Heat
The amount of energy transferred from one body to another spontaneously due to their temperature difference
