Thermochemistry

2. A substance that takes parts in an undergoes change during a reaction
3. Chemical reaction in which heat is given off
5. a unit of work or energy in the International System of Units
7. The result of the movement of tiny particles called atoms, molecules, or ions in solids, liquids and gases
8. A unit for measurement for temperature
9. The amount of heat needed to turn 1 gram of liquid into vapor, without a rise in the temperature of the liquid
10. The process by which heat is transferred from the hotter end to the colder end of an object
13. Heat Energy
15. The study of energy changes that occur during chemical reactions and changes in a state
16. The species formed form chemical reactions
18. The energy required to raise the temperature of 1 gram of a substance by 1 degree Celsius
19. Chemical reaction in which heat is absorbed

1. The measurement of heat changes
4. an energy unit equal to the approximate amounts. F energy required to raise 1 g of water by 1 degree Celsius or about 4.2 joules.
6. The energy that comes from a source and travels through space at the speed of light
11. The process by which heat is transferred by movement of a heated fluid, such as air or water
12. The unit of temperature on the Celsius scale in the International System of Unit
14. The quantity of heat necessary to change 1 gram of solid into a liquid without temperature changes
17. The energy an object or particle has due to its motion