thermochemistry

1. the process by which heat energy is transmitted through collisions between neighboring atoms or molecules.
4. the energy that comes from motion.
5. the amount of heat needed to turn 1 g of a liquid into a vapor, without a rise in the temperature of the liquid.
7. energy that comes from a source and travels through space at the speed of light.
8. the quantity of heat (J) absorbed per unit mass (kg) of the material when its temperature increases 1 K (or 1 °C).
12. the SI derived unit used to measure energy or work.
13. chemical reactions that absorb (or use) energy.
14. the process of measuring the amount of heat released or absorbed during a chemical reaction.
18. the standard unit of temperature in the metric system of units.
19. a chemical reaction where the substances reacting release energy as heat.

2. the movement of heat by a moving gas or liquid.
3. a branch of chemistry that describes the energy changes that occur during chemical reactions.
6. the result of the movement of tiny particles called atoms, molecules or ions in solids, liquids and gases.
9. the amount of energy needed to warm 1 g of H2O by 1°C.
10. the energy contained within a system that is responsible for its temperature.
11. a substance that is formed as the result of a chemical reaction.
15. substances initially present in a chemical reaction that are consumed during the reaction to make products.
16. the quantity of heat necessary to change 1 g of a solid to a liquid with no temperature change.
17. the SI unit of thermodynamic temperature.