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Chemical Kinetics

Chemical Kinetics. The rate or speed of chemical reactions - experimental & graphical How to control or influence the rate - faster or slower The mechanism of the reaction - atomic/molecular level picture of how reactions occur (organic chem.). Investigating a Simple Reaction.

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Chemical Kinetics

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  1. Chemical Kinetics • The rate or speed of chemical reactions - experimental & graphical • How to control or influence the rate - faster or slower • The mechanism of the reaction - atomic/molecular level picture of how reactions occur (organic chem.)

  2. Investigating a Simple Reaction A2(g) + B2(g) 2AB(g) molecular view How is the reaction going to occur?

  3. possible collisions

  4. comes apart an effective collision Activated complex- hypothetical

  5. In any chemical reaction: • bonds break - this requires energy • bonds form - this releases energy • overall for the reaction • exothermic reaction - releases energy • endothermic reaction - absorbs energy • Is there an energy barrier to overcome?

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