| A | B | 
| Joules | SI Unit of heat & energy | 
| Calorie (upper case) | In America, equals 1 kilocalorie | 
| Thermochemistry | Study of heat changes | 
| Energy | Ability to do work or supply heat | 
| Heat | form of energy, calories or joules | 
| Exothermic Reaction | Process that gives off heat | 
| Endothermic Reaction | Process that absorbs heat | 
| calorie (lower case) | unit for heat, NOT the SI unit | 
| KJ/mol | units for molar heat of fusion | 
| 4.18 J/gC | specific heat for water | 
| Chemical Energy | energy stored in bonds | 
| 1 g/ml | density of water | 
| Fireworks | example of an exothermic process | 
| CxmxT | equation for heat | 
| Q / (mxT) | equation for specific heat | 
| Molar Heat of Fusion | heat needed to melt 1 mol of a substance | 
| Ice Melting | example of an endothermic process | 
| cal/gC | units for specific heat | 
| 6.01 KJ/mol | molar heat of fusion of water | 
| Specific Heat | heat needed to raise temp of 1g of substance 1C |