Energy and Rates of Reactions
Law of Conservation of Energy <ul><li>Energy cannot be created or destroyed, but can be changed from one form to another. ...
Exo vs. Endo <ul><li>Exothermic Reaction: </li></ul><ul><li>Energy is released by breaking bonds </li></ul><ul><li>Example...
Activation Energy <ul><li>Minimum amount of energy required to start a reaction </li></ul><ul><li>Could be heat, another s...
Energy Graphs Exothermic Endothermic Products have  less  energy in bonds than reactants Products have  more  energy in bo...
Rates (Speed) of Reaction <ul><li>Affected by: </li></ul><ul><li>Temperature </li></ul><ul><li>Concentration </li></ul><ul...
Catalysts Catalysts lower activation energy to start reaction
Enzymes are biological catalysts
Inhibitors
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Energy And Rates Of Reactions 9

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Energy And Rates Of Reactions 9

  1. 1. Energy and Rates of Reactions
  2. 2. Law of Conservation of Energy <ul><li>Energy cannot be created or destroyed, but can be changed from one form to another. </li></ul>
  3. 3. Exo vs. Endo <ul><li>Exothermic Reaction: </li></ul><ul><li>Energy is released by breaking bonds </li></ul><ul><li>Example: Sulfuric Acid and Sugar releases heat. </li></ul><ul><li>Endothermic Reaction: </li></ul><ul><li>Energy is absorbed by making new bonds </li></ul><ul><li>Example: Chemical Ice packs </li></ul>All Chemical Energy is stored in chemical bonds
  4. 4. Activation Energy <ul><li>Minimum amount of energy required to start a reaction </li></ul><ul><li>Could be heat, another substance, motion, friction, etc </li></ul>
  5. 5. Energy Graphs Exothermic Endothermic Products have less energy in bonds than reactants Products have more energy in bonds than reactants
  6. 6. Rates (Speed) of Reaction <ul><li>Affected by: </li></ul><ul><li>Temperature </li></ul><ul><li>Concentration </li></ul><ul><li>Surface Area </li></ul><ul><li>Inhibitors </li></ul><ul><li>Catalysts </li></ul>
  7. 7. Catalysts Catalysts lower activation energy to start reaction
  8. 8. Enzymes are biological catalysts
  9. 9. Inhibitors

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