Thermodynamics Vocabulary

3. In condensation, energy is ---.
4. The --- heat of a substance is the amount of energy needed to raise the temp of 1 kg by 1 specific The --- heat of a substance is the amount of energy needed to raise the temp of 1 kg by 1 deg C.
9. The transfer of energy through movements of mass (currents) in a fluid.
10. Both endothermic and exothermic processes exchange energy with the surrounding ---.
12. In melting, energy is --- .
14. The phase change from liquid to gas.
15. The flow of energy from high temperature to low temperature.
16. A --- curve is a graph showing the temperatures and phase changes for the endothermic phase changes.
17. Any process that releases energy into the surrounding environment.
19. The transfer of energy through the collisions of molecules in a solid.
23. The molecules of a substance move faster when they --- energy.
24. The phase change from gas to liquid.
25. A substance that allows the rapid transfer of energy, as heat or electrical current, through a substance.

1. The average kinetic energy of the molecules of a substance.
2. A --- curve is a graph showing the temperatures and phase changes for the exothermic phase changes.
3. The molecules of a substance slow down when they --- energy.
4. “Dry Ice” does not melt; instead, it goes through a phase change called --- and has no liquid phase.
5. In a phase change, the temperature is --- .
6. The phase change from solid to liquid.
7. The phase change to solid directly from gas without a liquid phase.
8. A --- curve is a graph showing the temperatures and phase changes for the exothermic phase changes.
11. The heat of --- is the amount of energy needed to transform 1 kg of a liquid to a gas.
13. Any process that absorbs energy from the surrounding environment.
15. A --- curve is a graph showing the temperatures and phase changes for the endothermic phase changes.
18. In thermal ---, two objects in contact exchange energy until they reach the same temperature.
19. A substance that does not allow the rapid transfer of energy, as heat or electrical current, through a substance.
20. The heat of --- is the amount of energy needed to melt 1 kg of a substance.
21. The phase change from liquid to solid.
22. The transfer of energy by electromagnetic waves without requiring contact with the source of the energy.