| A | B |
|---|
| Thermochemistry | Concerned with the changes that occur during chemical reactions. |
| Energy | The capacity of doing work or supplying heat. |
| Law of Conservation of Energy | In an chemical of physical process, energy is neither created or destroyed. |
| Endotheric | Absorbs heat |
| Exothermic | Releases heat |
| Calorie (with a big C) | 1 Calorie= 1 kilocalorie= 1,000 calories |
| calorie (with a small C) | The quanity of heat needed to raise the temperature of 1g of pure water 1degree celcius. |
| Joule | the S.I. unit of energy. |
| Heat Capacity | The quanity of heat required to change an objects temperature 1 degree celcius. |
| Hess's Law | A set of reactants to a set of products, the enthalpy change is same whether the reaction takes place in one step or a series of steps. |
| Enthalpy | the heat content of a system at a constant pressure. |
| Calorimetry | At accurate and precise measurement of a heat change for chemical and physical process. |
| Thermochemical Equation | An equation that includes the heat change. |
