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Intro to I.S. c stud
studholme chpt.3 vocab
| Question | Answer |
|---|---|
| Define pressure | It is the result of a force distributed over an area |
| What is a state of matter that has bot a definite shape and volume? | Solid |
| What state of matter has a definite volume but not a definite volume. | Liquid |
| What state of matter has no definite shape or volume? | Gas |
| What is the energy an object has due to its motion. | Kinetic Energy |
| What is the Charles law? | The Charles 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 |
| If the Boyle's law is p1V1 = P2V2 what does that mean? | the volume of a gas is inversely proportional to its pressure if the temp. and the number of particles are constant. |
| Give an example of a phase change? | An example of a phase change is when a liquid freezes into a solid and then melts back into a liquid again. |
| What is an example of an endothermic change? | An example of an endothermic change is when an ice sculpture begins to melt. The ice is absorbed by the warmer air. |
| What is Heat of Fusion? | The energy a substance must absorb in order to change from a liquid to a gas. |
| What kind of change releases its energy to its surroundings? | Exothermic Change |
| what is the definition of vaporization? | It is a phase change which a liquid changes into a gas or a vapor. |
| What is the enrgy that must be absorbed to change from a liquid to a gas or a vapor is called..? | Heat of vaporiztion |
| Give an example of evaporation. | An example is when you boil a pot of water for pasta and the water turns into steam when the temp. increases. |
| What is vapor pressure? | Vapor pressure is pressure caused by the collisons of particles in a vapor with walls of a container. |
| If there was dew on the grass in the mornig what would that suggest? | That suggests that condensation occured. Condensation is the phase change when a gas or vapor turns into a liquid. |
| Explain sublimation. | Phase change in which a soid changes into a gas or a vapor without changing into a liquid first. |
| What is the reverse phase change of sublimation when a gas or vapor directly changes into a solid. | Deposition. ex:frost on a window |
Created by:
Cstudholme19
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