| A | B |
| 1st law of thermodynamics | energy can neither be created or consumed |
| calorimeter | insulated container to measure change in temperature |
| specific heat capacity | amount of energy neeeded to raise 1g of substance by 1 deg. C |
| enthalpy (H) | equal to the heat energy transferred at constant pressure |
| entropy (S) | measure of disorder or positional possibilities |
| 2nd law of thermodynamics | entropy of the universe is constantly increasing |
| 3rd law of thermodynamics | the entropy of a pure, perfectly formed crystalline substance at absolute zero is zero |
| Gibbs Free Energy (G) | can be used to determine if a reaction will be spontaneous |
| energy | ability to do work or produce heat |
| heat | energy that flows from warmer to cooler |
| Joule | SI unit for heat and energy |
| thermochemistry | the study of heat changes from chemical reactions |
| exothermic | a reaction in which heat is released, given off or produced. Is on the produce side of a reaction |
| endothermic | reation in which energy is absorbed and is on the reactant side |
| temperature | measure of the average kinetic energy of the particles in a substance |
| spontaneous reaction | a change that takes place without any outside intervention |