Thermodynamics Vocabulary

4. The flow of energy from high temperature to low temperature.
5. The transfer of energy by electromagnetic waves without requiring contact with the source of the energy.
6. In melting, energy is --- .
10. The transfer of energy through the collisions of molecules in a solid.
12. The phase change from liquid to solid.
13. “Dry Ice” does not melt; instead, it goes through a phase change called --- and has no liquid phase.
14. In condensation, energy is ---.
15. Both endothermic and exothermic processes exchange energy with the surrounding ---.
16. The phase change from liquid to gas.
17. A substance that does not allow the rapid transfer of energy, as heat or electrical current, through a substance.
18. The phase change from solid to liquid.
19. The molecules of a substance slow down when they --- energy.
20. The phase change to solid directly from gas without a liquid phase.

1. Any process that releases energy into the surrounding environment.
2. The average kinetic energy of the molecules of a substance.
3. A substance that allows the rapid transfer of energy, as heat or electrical current, through a substance.
6. The molecules of a substance move faster when they --- energy.
7. In thermal ---, two objects in contact exchange energy until they reach the same temperature.
8. In a phase change, the temperature is --- .
9. The phase change from gas to liquid.
11. The transfer of energy through movements of mass (currents) in a fluid.
15. Any process that absorbs energy from the surrounding environment.