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inter science per F

Tavekelian-pnhs-intro to I.S. vocab

QuestionAnswer
What do materials in a solid have? a definite shape and a definite volume
What state of matter has a definite volume but not a definite shape? a liquid
What state of matter takes the shape and volume of the container that it is in? a gas
What is the cause of the energy an object has due to its motion? kinetic energy
What does pressure result in? a force distributed over an area
What is absolute zero? a temperature of 0 K
Which law 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? Charles law
Which law states that the volume of a gas is inversely proportional to its pressure if the temperature and the number of particles are constant? Boyle's Law
What is a phase change? the reversible physical change that occurs when a substance changes from one state of matter to another
What happens during an endothermic change? the system absorbs energy from its surroundings
What is another term for melting? heat of fusion
Which change happens when a system releases energy to it's surroundings? exothermic
What is vaporization? the phase change in which a substance changes from a liquid into a gas
What is it called when one gram of water gains 2261 joules of energy when it vaporizes? heat of vaporization
What is evaporation? the process that changes a substance from a liquid to a gas at temperatures below the substance's boiling point
When does the vapor pressure of water increase? as the temperature increases
What is the phase change in which a substance changes from a gas or vapor to a liquid? condensation
What type of phase change is sublimation? a substance that changes from a solid to a gas or vapor without changing to a liquid first
What happens when a gas or vapor changes directly into a solid without first changing to a liquid? deposition
Created by: daritavekelian
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