Across
- 2. the substances produced by a chemical reaction.
- 5. the energy which a system possesses because of movement within the system.
- 6. the slowest step in a reaction mechanism.
- 7. process of absorbing heat.
- 9. molecules which are produced in one step of a reaction mechanism and subsequently used up in another step.
- 10. the phenomenon that suitable particles of the reactant hit each other and cause any noticeable or significant chemical change.
- 12. a chemical which can be added to a reaction to increase the rate of the reaction.
- 14. a graph showing how the number of particles having a given kinetic energy changes with increasing temperature.
- 15. arises to explain the precise temperature and pressure of the heat of reaction ΔH.
- 16. the theory stating that molecules act as small, hard spheres which bounce off each other and transfer energy among themselves during their collisions.
- 18. the speed at which reactants are converted into products.
- 19. the substances being combined in a reaction.
Down
- 1. the actual sequence of steps which make up an overall reaction.
- 3. a balanced stoichiometric chemical equation that includes the enthalpy change.
- 4. process of releasing heat.
- 8. an intermediate molecule which occurs when reactants are in the process of rearranging to form products.
- 11. the minimum potential energy required to change reactants into an activated complex.
- 13. the energy existing as a result of an object's position in space, as well as the sum of all the attractive and repulsive forces existing among the particles which make up the object.
- 17. the total kinetic and potential energy which exists in a system when it is at constant pressure.