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introto I.S houghton
| Question | Answer |
|---|---|
| What is a liquid? | a liquid is a substance that has a definite volume but not a definite shape. |
| What is a solid? | A solid is a substance with a definite shape and a definite volume. |
| What is a gas? | A material that does not have either a definite shape or volume. |
| How would you describe what kinetic energy is? | kinetic energy is the energy that occurs when something is in motion. |
| what is pressure? | Pressure is the result of a force distributed over an area. |
| what does Charles law state? | 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. |
| At what temperature is absolute zero at? | Absolute zero is at 0 degrees kelvin. |
| What does Boyle's law state? | Boyle's law states that the volume of a gas is inversely proportional to its pressure if the temperature and the number of particles are constant. |
| What is a phase change? | A phase change is a reversible physical change that occurs when a substance changes from one state of matter to another. |
| What is heat fusion another term for? | It is another term for melting. |
| What does it mean to be exothermic? | When something is releasing energy to is surroundings? |
| What does it mean to be endothermic? | When a system absorbs energy from its surroundings. |
| What happens during vaporization? | During vaporization a liquid turns into a gas. |
| what is heat vaporization? | One gram of water gains 2261 joules of energy when it is vaporized. The amount of energy is heat of vaporization. |
| What is evaporation? | The process that changes a substance from a liquid to a gas at a temperature below the substance's boiling point. |
| What is vapor pressure? | The pressure caused by the collisions of this vapor and the walls of the container. |
| During sublimation what phase change is skipped? | During sublimation a substance changed from a solid to a gas, it skips over the liquid change. |
| What phase change does the process of deposition skip? | During the process of deposition a gas or vapor changes directly into a solid with out first becoming a liquid. |
Created by:
shaehoughton
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