| Term |
Definition |
| Thermochemistry | Study of the heat effects associated with chemical reactions |
| Heat | Form of motion at the molecular level by which energy is transferred between materials |
| Calorimetry | Quantitative study of heat: the measurement of how much heat is evolved or absorbed in chemical reactions |
| Heat Capacity | Amount of heat needed to raise its temperature by one unit of temperature |
| Molar Heat Capacity | Heat capacity per mole of a substance |
| Specific Heat Capacity | Heat capacity per unit mass of material |
| Enthalpy | Amount of heat absorbed |
| State Property | Depends only on the state of the system and not on the path followed to reach that state |
| Exothermic | Reaction in which heat is evolved |
| Endothermic | Reaction in which heat is absorbed |
| Hess's Law | When several chemical equations are added or subtracted to give an overall equation, additon or subtraction of the corresponding enthalpy changes gives the enthalpy change associated with the overall equation |
| Standard Molar Enthalpy of Formation | Equals the enthalpy change when 1 mol of a species is formed in a standard state at a specified temperature from the most stable forms of the elements that constitute it |
| Bond Enthalpies | Used to estimate standard enthalpies of gas-phase reactions |
| Work | Increases a body's energy |
| Pressure-Volume Work | Expansion of a system against, or its compression by, an external pressure |
| 1st Law of Thermodynamics | Change in internal energy of a system is the sum of the work done on it and the heat transferred to it |
Cardio Block2anatomy
