Heat Flashcards
To learn everything about heat (10 cards)
What is heat?
It is a source of energy!
What are some properties of solids?
Molecules are close together Strong intermolecsr forces of attraction Molecules vibrate but done move around Cannot flow Cannot be compressed
What are some properties of liquids?
Molecules are close together in a random arrangement
Weaker intermolecular forces if attraction than solids
Molecules move around each other
Flows and takes shape of the container
Can’t be compressed
What are some properties of gases?
Molecules are far apart Negligible intermolecular forces of attraction Molecules move quickly in all directions Flows and completely fills the container Can be compressed
What is brownian motion?
Gas molecules move rapidly and randomly
This is due to collisions with other gas molecules
Massive molecules may be moved by light fast moving molecules
State the relation between the temperature and kinetic energy of molecules.
The higher the temperature, the greater the average kinetic energy of the molecules.(Hence the average speed of the molecules increase)
What is Charles’ law?
With pressure constant, if the temperature increases, the volume also increases.
What is Boyle’s law?
With temperature constant, as the volume decreases, the pressure increases.
What is Boyle’s law?
With temperature constant, as the volume decreases, the pressure increases.
What is the pressure law?
With volume constant, pressure is directly proportional to the temperature.
