Changes in State
What is the name for a change of state from solid to liquid?
Melting
How do the particles of a gas move?
As temperature increases, what happens to the motion of the particles in a substance?
They move faster.
What does it mean is two properties are inversely proportional?
They change in opposite ways.
Which property of a gas is caused by the collision of its particles with each other and the container it is in?
Pressure
What is the name for the change of state from liquid to gas?
Evaporation or Boiling
How do the particles of a liquid move?
They slide past each other.
What is the name for the temperature at which all molecular motion stops?
Absolute zero.
What does it mean if two properties are directly proportional?
They change in the same way.
If the temperature of a sample of gas increases, while the volume and number of particles remains the same, the pressure will ____.
Increase
What is the name for the change in state from gas to liquid?
Condensation
How do the particles of a solid move?
They vibrate in place.
What is the difference between heat and temperature?
Heat is a transfer of energy. Temperature is the average kinetic energy of the particles in a substance.
Who's law states that volume and temperature are directly proportional?
Charles' Law
If the volume of a sample of gas decreases, while the temperature and number of particles remains the same, the pressure will ____.
Increase
What is the name for the change of state from solid to gas?
Sublimation
How do the particles of a plasma move?
They move in all directions, very fast.
Name three types of heat transfer.
Radiation, Conduction, Convection
Who's law states that pressure and volume are inversely proportional?
Boyle's Law
A sample of gas at 55.8 kPa (pressure) is held in a 26 mL container. If this gas is transferred into a new container, its pressure increases to 110 kPa. Is the new container bigger or smaller than 26 mL?
Smaller
What causes water to be a liquid at room temperature, while carbon dioxide is a gas at room temperature?
Water has stronger intermolecular attractions than carbon dioxide.
Which property of matter is a measure of the average kinetic energy of its particles?
Temperature
List the three assumptions of the kinetic theory.
All matter is made of small particles.
The particles are in constant random motion.
Collisions between particles are perfectly elastic.
Who's law states that temperature and pressure are directly proportional?
Amonton's Law
A 925 mL balloon contains oxygen gas at 30˚C and 151.2 kPa. What happens to the volume of the balloon if the temperature increases to 52˚C and the pressure decreases to 119.7 kPa?
The volume increases.