Question | Answer |
what is the state of matter in which the materials have a definite shape and volume? | a solid |
what is the state of matter in which a material has a defeinite volume but not a definite shape? | a liquid |
what is the state of matter in which a material doesnt have a definite shape or volume? | a gas |
what is the energy of an object called due to its motion | kinetic energy |
what is the result of a force distributed over an area | pressure |
tempature of 0 K is called? | absolute zero |
what law states that the volume of a gas is directly proportional to its tempature in kelvins? | charle's law |
what states that the volume of a gas is inversely proportional to its pressure if the tempature and the number of particles are constant? | boyle's law |
what is the reversible physical change that occurs when a substance changes from one state of matter to another. | phase change |
what is it called when the system absorbs energy from its surroundings? | endothermic change |
what is the energy a substance ,ust absorb in orer to change from a solid to a liquid called? | Heat of Fusion |
what is the change called when the system releases energy to its surroundings? | exothermic change |
what is the phase change called when a substance changes from a liquid to a gas? | vaporization |
what is ut called when a substance must absorb energy to change from a liquid to a gas? | heat of vaporization |
what is the process called when a substances changes from a liquid to a gas? | evaporation |
the pressures caused by the collisions of this vapor and the walls of the container is called? | vapor pressure |
what is the pase change called in which a substance changes from a gas or vapor to a liquid? | condensation |
what is the phase change when a substance changes from a solid to a gas to a or vapor without changing to a liquid first? | sublimation |
what is the phase change called when a gas or vapor changes directly into a solid without first changing to a liquid? | deposition |