| A | B |
|---|
| energy | capacity to do work or cause the flow of heat |
| conservation of energy | energy is not created or destroyed but can change type |
| kinetic energy | energy of motion |
| potential energy | stored energy |
| work | force acting over distance |
| temperature | measure of random molecular motion (kinetic energy) |
| heat | energy transfered between two objects because of a temperature difference |
| system | the reaction |
| surroundings | just outside the system |
| exothermic | heat flows out of system |
| endothermic | heat flows into system |
| enthalpy | overall energy flow as heat at constant pressure |
| internal energy | sum of kinetic and potential energy for all components of an object |
| thermodynamics | study of energy and it's interactions |
| calorie | energy required to raise the temp of 1g of water 1 degree C |
| kilocalorie | 1000 calories |
| joule | energy unit 1cal = 4.184 J |
| kilojoule | 1000 joules |
| Calorie | food calorie = 1000 calories |
| specific heat | energy required to raise the temp of 1g of a substance by 1 degree C |
| calorimetry | science of measuring heat flow |
| fossil fuels | carbon based fuel derived from decomposition of once living organisms |
| petroleum | thick dark liquid consisting of hydrocarbon compounds |
| hydrocarbons | compound of hydrogen and carbon |
| natural gas | consists mostly of methane and associated with petroleum deposits |
| coal | formed from plant remains under pressure |
| entropy | (S) measure of disorder or randomness |
