Question | Answer |
Why is a solid so orderly? | All of the atoms are so closely packed that they are stuck in place vibrating. they still have Kinetic Energy. |
What is a liquid? | State of matter in which a material has a definite volume but not a shape. |
Give an example of how a gas looks in a gas's state of matter. | A pool's billiards bouncing off each other. |
Is it still considered Kinetic Energy when an object is not moving? | Yes. |
True or False, pressure is distributed over one area of an object? | False, it is distributed over all areas of the object. |
At which temperature is something considered Absolute Zero? | The temperature at which an object is at 0 Kelvin. |
Charles Law decrees what? | Volume of a gas is directly proportional to it's temperature in kelvins if the pressure and number of particles are constant. |
What does Boyles law decree? | Volume of gas is inversely proportional to it's pressure if the temp. and the number of constant is proportional |
Give an example of a phase change. | Melting, freezing, condensation, sublimation, and deposition are six common phase changes. |
How can you remember that endothermic is when a system absorbs energy rather than releases it? | Endo means within in Latin. |
What is heat of fusion? | Melting points for substances. |
How can you remember exothermic in comparison to endothermic? | Ex means out in latin so energy is being releases or let out |
Is vaporization an endothermic or exothermic process? | Endothermic. |
True or false the heat of vaporization varies from substance to substance | True. |
Does evaporation take place below or about the surface of the liquid? | Above. |
When does the vapor pressure of water increase? | When the temperature increases. |
During condensation does the phase change go from gas to liquid or liquid to gas? | Gas to liquid. |
Give an example of sublimation. | Dry ice freezing. |
What is deposition the reverse of? | Sublimation. |