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Ch.3 StatesOfMatter

Mary DeFelice; PNHS

QuestionAnswer
If an object has a definite shape and volume what is it? solid, liquid, or gas? It's a solid.
What is Kinetic Energy? is the energy an object has due to it's motion.
what allows gas to fill a container of any shape or size? the constant motion of particles.
what is a liquid? the state of matter in which a material has a definite volume but not a definite shape.
what is the result of a force distributed over an are? pressure.
what is Charles's law? it states that the volume of a gas is directly proportional to its temperature in kelvins if the pressure and the number of particles of the gas are constant.
if something states that the volume of a gas is inversely proportional to its pressure if the temp and the number of particles are constant? Boyle's Law.
a temperature of 0 K is called what? absolute zero.
what is a phase change? is the reversible physical change that occurs when a substance changes from one state of matter to another.
during what kind of change does the system absorbs energy from its surroundings? endothermic change.
what is heat fusion? the amount of energy for water.
what kind of change of change does the system release energy to its surroundings? exothermic change.
vaporization is the change of what? the phase change in which a substance changes from a liquid into a gas.
_____________ varies from substance to substance. heat of vaporization.
what is evaporation? process that changes a liquid to a gas at temps below the substance's boiling point.
vapor pressure is? the pressure caused by the collisions of this vapor and the walls of the container.
the phase change in which a substance changes to a gas to a liquid is? condensation.
the phase in which a substance changes from a solid to a gas without changing to a liquid first is? sublimation.
when a gas changes directly into a solid without first changing to a liquid is? deposition.
Created by: xomaryruthxo5686
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