Reaction Rates

1. type of catalyst important in living organisms
4. value for Gibbs free energy when the reaction is nonspontaneous
7. increases the rate of a chemical reaction without being consumed in the reaction - it is not a reactant or product
8. states that atoms, ions, and molecules must collide in order to react
10. value for Gibbs free energy when the reaction is spontaneous
11. the minimum amount of energy that reacting particles must have to lead to a reaction
13. randomness of all things in the universe
14. reactants have lower energy than products
15. products have lower energy than reactants

2. sum of energy
3. change in concentration of a reactant or product per unit of time, generally expressed as mol/(L·s)
5. substance that slows down reaction rates or inhibits reactions
6. describes reactions where products are favored
9. Greek letter delta (Δ) written before a quantity indicates a change in the quantity
10. describes reactions where products are NOT favored
12. energy that may be converted into work in a system that is at constant temperature & pressure