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Chemistry Unit 7
| Term | Definition |
|---|---|
| Entropy | Measure of degree of randomness as particles move |
| Chemical Equilibrium | Rate of forward reaction equals rate of reverse reaction and the concentrations of products and reactants remain unchanged |
| Activated Complex | The maximum energy point along the reaction path |
| Activation Energy | The minimum energy that must be input to a chemical system with potential reactants to cause a chemical reaction |
| Collision Theory | Qualitatively explains how chemical reactions occur and why reaction rates differ for different reactions |
| Catalyst | A substance that speeds up a chemical reaction, but is not consumed by the reaction |
| Reversible Reaction | Products can react to re-form the reactants |
| Le Chatelier's Principle | If a stress is applied to a system at equilibrium the system shifts in the direction that relieves the stress |
| Reaction Rate | Change in concentration of a reactant or product per unit of time |
| Inhibitor | Slows down reaction rate or prevents reaction from happening |