| A | B |
|---|
| Temperature | Avg. KE of all particles |
| calorimeter | insulated container to measure change in temperature |
| heat capacity | amount of energy needed to raise temp. 1 deg. C |
| 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 |
| heat of reaction | energy added or released during a rxn |
| 1000 J | 1 KJ |
| Gibbs Free Energy (G) | can be used to determine if a reaction will be spontaneous |
| 4.18 KJ | 1000 calories (physics) |
| activation energy | energy needed to get a rxn going |
| heat of vaporization | energy required to change a liquid to a vapor |
| enthalpy changes | equivalent to heat transferred during a phys/chem change |
| endothermic | positive delta H values |
| exothermic | negative delta H values |
| Hess's Law | Enthalpy changes are the same no matter what pathway a given rxn takes |
| -delta H and + delta S | always favored |
| -delta H and -delta S | favored at lower temps |
| +delta H and +delta S | favored at higher temps |
| +delta H and - delta S | never favored |
