Chem-Kinetics
Terms
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- enthalpy
- The potential energy in a reaction
- kinetics
- the rate of chemical reactions and the mechanisms by which they occur.
- Exothermic
- release energy on the right
- Activated Complex
- Intermediate phase between reactants and products which is short-lived, has high energy and is very unstable.
- collision theory
- In order for a reaction to occur, the reactants must collide with enough KE and the proper angle.
- Effective Collision
- causes a reaction with the right amount of KE.
- Heat of reaction
- Change of heat-Potential Energy of product minus Potential energy of reaction
- Temperature
- Increase Kenetic Energy and reaction rate.
- catalyst
- Unchanged in a reation which speeds up the reaction rate and lowers activation energy.
- Activation energy
- The minimum amount of energy needed to cause a reaction.
- Concentration
- Increase reaction rate, and frequency of collisions
- Speed up reaction
- increase temperature, increase pressure, catalyst, gasses, increase concentration, increase surface area.
- pressure
- gasses-increase reaction rate and collisions
- Reaction Mechanism
- The sequence of reactions by which a chemical change occurs
- Endothermic
- absorb energy on the left.