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chapter 3 icp rev
review
| Question | Answer |
|---|---|
| what will cause a decrease in gas pressure in a closed container? | lowering the temperature. |
| the temperature and volume in a closed container of gas remain constant. if the number of particles of gas is increased, the pressure will... | increase. |
| the law that states that the volume of a gas is directly proportional to its temperature in kelvins if the pressure and the number of particles is constant is... | Charles law. |
| the phase change in which a substance changes from liquid to gas is... | vaporization. |
| what type of change occurs when water changes from a solid to a liquid? | a physical change and a phase change. |
| the heat of fusion for water is the amount of energy needed for water to... | melt. |
| the phase change in which a substances changes from a solid to a gas or vapor without changing to a liquid first is... | sublimation. |
| temp can be used to recognize a phase change because during phase change the temp of the substance... | does not change. |
| during a phase change, the temp of a substance... | stays the same. |
| the phase change in which a substance changes from a solid to a liquid is... | melting. |
| Boyle's law states that volume of gas is inversely proportional to its pressure if the... | temperature and number of particles are consistent. |
| which of the following factors affect the pressure of an enclosed gas? | volume, temperature, and number of particles. |
| what is the result of force distributed over an area? | pressure. |
| 99% of all matter that can be observed in the universe exists as... | plasmas |
| during what phase change does the arrangement of water molecules become more orderly? | freezing. |
| which of the following statements about ice melting is true? | water molecules move from their fixed position. |
| collisions of helium atoms and the walls of a closed container cause... | gas pressure. |